1 CA-SA 25-0137 Precedential Granted Processed

McMahan v. Grasshopper

Arizona Court of Appeals · Filed October 16, 2025

Authorities cited

Identified automatically; this list may not be exhaustive.

Opinion text

IN THE
ARIZONA COURT OF APPEALS
DIVISION ONE

BRANDON L. MCMAHAN, an individual, Petitioner,

v.

GRASSHOPPER TRANS. INC., an Illinois corporation, Respondent.

No. 1 CA-SA 25-0137
FILED 10-16-2025

Petition for Special Action from the Superior Court in Maricopa
County No. CV2024-003517
The Honorable Christopher Whitten, Judge
The Honorable Richard Albrecht, Commissioner

JURISDICTION ACCEPTED; RELIEF GRANTED

COUNSEL

Ahwatukee Legal Office PC, Phoenix
By David L. Abney
Co-Counsel for Petitioner

Yetnikoff Law Offices PLLC, Scottsdale
By Isidore Yetnikoff
Co-Counsel for Petitioner

Lewis Brisbois Bisgaard & Smith LLP, Phoenix
By Sean P. Healy, Kristian E. Nelson, and Joseph Hubble
Counsel for Respondent
MCMAHAN v. GRASSHOPPER
Opinion of the Court

OPINION

Judge Andrew M. Jacobs delivered the opinion of the Court, in which
Presiding Judge Cynthia J. Bailey and Chief Judge Randall M. Howe joined.

J A C O B S, Judge:

¶1 In this special action, Plaintiff Brandon McMahan challenges
an order granting Defendant Grasshopper Transportation Inc.’s Rule 60
motion to vacate an entry of default for insufficient service of process. We
exercise our discretionary special action jurisdiction because the petition
presents a legal issue of statewide importance, the resolution of which will
materially advance the efficient management of the case. See Ariz. R.P.
Spec. Act. 12(b)(4), (7). We grant relief because McMahan is right that
Grasshopper waived any objection to the sufficiency of service of process.
Grasshopper did so by: (1) omitting to raise this defense in a motion to
dismiss under Rule 12(b)(5) before answering, while failing to assert the
defense in its answer; and (2) consistently averring it was served while
appearing and defending this suit, consistent with service.

FACTS AND PROCEDURAL HISTORY

A. McMahan Sues Grasshopper, His Process Server Leaves the
Complaint with Grasshopper’s Statutory Agent, and
Grasshopper Sends the Suit to Its Carrier to Defend.

¶2 In February 2023, McMahan was injured while working at a
construction site when a tractor-trailer Grasshopper allegedly operated
crashed into roadside barricades, throwing McMahan into the roadway.
The tractor-trailer did not stop and left the scene.

¶3 McMahan sued Grasshopper in February 2024.
Grasshopper’s statutory agent authorized to receive service of process is
Ljubisa Srejovic. On March 6, 2024, McMahan’s process server visited
Srejovic’s office. Srejovic was out, but Sladana Bojic, Srejovic’s employee
and representative, was present and accepted the documents provided by
McMahan’s process server. Later that day, Bojic forwarded McMahan’s
suit to Grasshopper, which admits it “promptly reported the lawsuit to its
insurance carrier the same day.”

2
MCMAHAN v. GRASSHOPPER
Opinion of the Court

B. After Grasshopper Fails to Defend the Suit, McMahan
Moves for Entry of Default and Default Judgment.

¶4 On April 9, 2024, McMahan filed an affidavit stating that his
process server served the “Summons, Complaint, and Certificate of
Compulsory Arbitration” on March 6, 2024 by leaving a copy with “c/o
Statutory Agent, Sladana Bojic, (Title): Registered Agent, a person
authorized to accept service[.]” The affidavit noted that “Srejovic was out
of town so papers were accepted by [his] assistant/registered agent.”

¶5 After Grasshopper failed to respond to his suit, McMahan
moved for entry of default on April 15, 2024. The default became effective
on April 29, 2024. See Ariz. R. Civ. P. 55(a)(4). McMahan then moved for
entry of default judgment on May 21, 2024.

C. Grasshopper Answers McMahan’s Complaint and
Affirmatively States It Lacks Facts Supporting the
Hypothesis That It Was Not Served.

¶6 On June 11, 2024, Grasshopper filed an answer to the
substantive allegations of McMahan’s complaint. Grasshopper’s answer
also raised eight affirmative defenses, none of which were insufficient
service of process. (One of the defenses Grasshopper did assert was failure
to state a claim, which, like insufficient service of process, is listed in
Arizona Rule of Civil Procedure (“Rule”) 12). See Ariz. R. Civ. P. 12(b)(5),
(6).

¶7 Grasshopper’s answer also listed 20 additional defenses in a
single block paragraph, averring that it did “not presently have sufficient
facts in support of” those defenses but that it hoped to support them
through discovery. These defenses Grasshopper was not yet asserting were
“abatement, lack of jurisdiction over the subject matter, lack of jurisdiction
over the person, accord and satisfaction, arbitration and award, discharge
of bankruptcy, duress, estoppel, failure of consideration, fraud, illegality,
laches, license, payment, release, res judicata, statute of frauds,
insufficiency of process, insufficiency of service of process and waiver.”
(Emphasis added).

3
MCMAHAN v. GRASSHOPPER
Opinion of the Court

D. Grasshopper Moves to Set Aside the Entry of Default and
for Rule 60 Relief From the Default, Repeatedly Contending
It Was Served.

1. Grasshopper’s Motion to Set Aside, Its Attestations
of Service, and the Court’s Finding of Service

¶8 On July 9, 2024, Grasshopper moved to set aside the entry of
default. In the motion, Grasshopper stated it was served with process
through its statutory agent: “Defendant acted properly and promptly upon
being served. Per the Affidavit of Service, Defendant was served by
personal service on Sladna Bojic, a representative of its registered agent,
L[j]ubisa Srejovic, on March 6, 2024. Defendant promptly reported the
lawsuit to its insurance carrier the same day.” Grasshopper’s motion
attached an affidavit from Ivana Zarubica, a Grasshopper employee, again
asserting Grasshopper was served: “Grasshopper was served with the
complaint . . . on March 6, 2024 through a representative of its registered
agent.” Grasshopper didn’t argue insufficient service as a ground to set
aside the default. Instead, it argued it had good cause to set aside the entry
of default because it “(1) ha[d] a meritorious defense; (2) appeared and
answered and resolution on the merits is strongly preferred; and (3)
Defendant’s inadvertence [was] excusable under the circumstances.”
(Emphasis added).

¶9 After McMahan responded to the motion, Grasshopper filed
its reply, again asserting it was served. Grasshopper’s reply stated it “acted
properly and promptly upon being served. Per the Affidavit of Service,
Defendant was served by personal service in Sladna Bojic, a representative
of its registered agent, L[j]ubisa Srejovic, on March 6, 2024. Defendant
promptly reported the lawsuit to its insurance carrier the same day.”

¶10 On August 6, 2024, the superior court denied Grasshopper's
motion to set aside, acknowledging that “Defendant was served with the
complaint on March 6, 2024” and stating it could not find that “Defendant’s
failure to respond to the complaint was the result of excusable neglect.”

2. Grasshopper’s Rule 60 Motion to Set Aside and Its
Attestations of Service

¶11 On August 21, 2024, Grasshopper moved for Rule 60 relief,
contending the court erred in denying its motion to set aside entry of
judgment. Grasshopper argued the court applied the incorrect legal
standard and that McMahan told Grasshopper it “could still answer,
litigate, and avoid a default judgment[,]” yet moved for entry of default

4
MCMAHAN v. GRASSHOPPER
Opinion of the Court

judgment the next day. Grasshopper also argued relief was appropriate
because McMahan had not claimed prejudice, the delay was the result of a
representative, and allowing Grasshopper to litigate the merits was in the
interest of justice because it had a meritorious defense. In its Rule 60
motion, Grasshopper again acknowledged it “was served on March 6, 2024”
and again did not raise insufficient service of process as grounds for relief.
McMahan responded, and Grasshopper replied. In the reply, Grasshopper
stated that on March 6, 2024, its “statutory agent [was] personally served
with the pleadings at the registered company address.”

¶12 The superior court denied the motion, finding Grasshopper’s
failure to respond to the complaint and entry of default was not justified by
good cause or excusable neglect.

E. Grasshopper Moves for Reconsideration, and Almost One
Year After Receiving McMahan’s Suit, Argues for the First
Time Insufficient Service of Process.

¶13 On February 19, 2025, Grasshopper moved for
reconsideration arguing, for the first time, insufficient service of process.
Grasshopper argued it had good cause to set aside the entry of default
because McMahan served “a random person named Sladana Bojic” rather
than Srejovic, “the actual registered agent of Grasshopper.” It attached an
affidavit stating Srejovic was the only registered agent or person authorized
to receive service. Grasshopper argued that, because it was not properly
served, the superior court never had jurisdiction to enter the default. Thus,
Grasshopper argued, its answer was timely.

¶14 The superior court held oral argument and ordered
Grasshopper to “recast” its motion for reconsideration as one for Rule 60
relief. Grasshopper did so. The court held oral argument on the recast Rule
60 motion and concluded Grasshopper was not properly served under Rule
4.2(h) and that Grasshopper was unable as a matter of law to waive its
argument that service upon it was insufficient. The court granted
Grasshopper’s motion for Rule 60 relief and vacated the entry of default.

¶15 This special action followed.

5
MCMAHAN v. GRASSHOPPER
Opinion of the Court

DISCUSSION

I. Rule 12 of Special Action Procedure Supports the Exercise of Our
Discretionary Jurisdiction.

¶16 Special action jurisdiction is discretionary. We may exercise
it when a petitioner lacks a remedy by appeal that is “equally plain, speedy,
and adequate[,]” Ariz. R.P. Spec. Act. 12(a), a question we answer by
looking to the factors in Rule 12 of Special Action Procedure. Determining
if a defendant subject to entry of default has waived the defense of
insufficient service of process in these circumstances is a matter of statewide
importance and will materially advance the efficient management of the
case. See Ariz. R.P. Spec. Act. 12(b)(4), (7).

II. The Law Lets Grasshopper Waive Its Argument That McMahan’s
Service of Process Upon It Was Insufficient, and It Did So.

¶17 We review a superior court’s ruling on a motion for relief
from a default judgment for abuse of discretion but review legal issues,
including interpretations of procedural rules and whether service was
proper, de novo. Gonzalez v. Nguyen, 243 Ariz. 531, 533 ¶ 8 (2018); Silence v.
Betts, 258 Ariz. 84, 194
-95 ¶ 7 (App. 2024); State ex rel. Dep't of Econ. Sec. v.
Pennel, 257 Ariz. 558, 561
¶ 9 (App. 2024).

¶18 McMahan argues the court erred by granting Grasshopper’s
motion for Rule 60 relief from the entry of default. McMahan contends
Grasshopper waived any challenge to service of process, emphasizing the
many filings through which Grasshopper admitted it was served.
Grasshopper counters that the entry of default was void because: (1)
McMahan failed to properly serve it under Arizona Rule Civil Procedure
(“Rule”) 4.2(h); and (2) the only way to waive service is under Rule 4.2(d).
Thus, Grasshopper argues the superior court never had personal
jurisdiction over it. McMahan is right—Grasshopper waived sufficiency of
service of process here, both by failing to raise the defense by a motion to
dismiss or in its answer, and again by its litigation conduct.

A. Grasshopper First Waived Insufficiency of Service of
Process By Failing to Timely Raise It By Moving to Dismiss
or in Its Answer.

¶19 The point of Rule 12(b)(5) is to require early resolution of the
defense of “insufficient service of process.” Ariz. R. Civ. P. 12(b)(5); see 5B
Charles Alan Wright & Arthur R. Miller, Federal Practice and Procedure § 1342
(4th ed. 2025) (construing federal counterpart to Rule 12(b)(5)). Indeed,

6
MCMAHAN v. GRASSHOPPER
Opinion of the Court

Rule 12(b) allows for the issue to be raised in a motion, which “must be
made before pleading if a responsive pleading is allowed.” Ariz. R. Civ. P.
12(b). Grasshopper could have moved to dismiss this suit under Rule
12(b)(5) before filing its answer. After all, by that time, Grasshopper knew
that service was effectuated not on the named statutory agent Ljubisa
Srejovic, but instead on her assistant Bojic at Srejovic’s professional office.

¶20 But Grasshopper didn’t file a Rule 12(b)(5) motion before it
answered, and answered without properly raising the defense. This
waived the defense. See Ariz. R. Civ. P. 12(b), (h)(1)(B). The Arizona
Supreme Court applied the rule in just this way in Montano v. Scottsdale
Baptist Hospital, Inc., 119 Ariz. 448 (1978). There, a party answered the
complaint without raising insufficiency of process by motion. 119 Ariz. at
452. Our supreme court found the defense waived. Id. (citing Rule 12(b)’s
requirement that if made by motion, the Rule 12(b)(5) defense of
insufficiency of process “shall be made before pleading if a further pleading
is permitted[,]” or it is waived).

¶21 The record forces a more nuanced analysis, but the nuances
don’t help Grasshopper. Grasshopper argues it reserved the defense of
insufficiency of process in its answer, thereby avoiding waiver, but that is
incorrect. See Ariz. R. Civ. P. 12(h)(1)(B) (Rule 12(b)(5) defense is waived if
not made in a timely Rule 12 motion or pleaded in a responsive pleading).
Grasshopper’s answer pled that on June 11, 2024, it lacked facts supporting
a defense of insufficiency of process, but that it might wish to develop the
defense of insufficiency of service of process through discovery. Yet on that
date, Grasshopper knew service was made on Bojic and not Srejovic—the
motion for default attached the proof of that. Thus, pleading that those facts
didn’t allow Grasshopper to make out the defense was the same as saying
those facts didn’t show insufficiency of process. As such, Grasshopper
chose not to assert the defense in its June 11, 2024 answer, despite knowing
all of the facts needed to do so.

¶22 All of this defeats Rule 12(b)(5)’s purpose of forcing the early
assertion of the defense of insufficiency of process. See 5A Charles Alan
Wright & Arthur R. Miller, Federal Practice and Procedure § 1342, at 162
(2d ed. 1990) (collecting cases). Because the Arizona and federal versions
of Rule 12 are very similar, federal authorities “are instructive and
persuasive in construing our rules, and we ‘subscribe to the principle that
uniformity in interpretation of our rules and the federal rules is highly
desirable.’” Waltner v. JPMorgan Chase Bank, N.A., 231 Ariz. 484, 488 ¶ 18
(App. 2013) (quoting Orme Sch. v. Reeves, 166 Ariz. 301, 304 (1990)).
Grasshopper thus waived the defense under Rules 12(b)(5) and 12(h)(1)(B).

7
MCMAHAN v. GRASSHOPPER
Opinion of the Court

B. Grasshopper Also Waived Insufficiency of Process
Through Its Litigation Conduct.

¶23 Parties can waive objections to the sufficiency of service of
process by appearing and defending a suit, as here. Montano, 119 Ariz. at
452 (“[T]he appearance of the defendants has the same effect as a timely
and valid service of process. Were there a jurisdictional defect by the failure
to prosecute the action (serve process) within the time allowed by law, it
has been waived by failing to claim it at the earliest opportunity.”); Kline v.
Kline, 221 Ariz. 564, 570
¶ 18 (App. 2009) (“A party has made a general
appearance when he has taken any action, other than objecting to personal
jurisdiction, that recognizes the case is pending in court.”); Jones v. Cochise
County, 218 Ariz. 372, 379
¶ 23 (App. 2008) (Personal jurisdiction can be
waived if not raised properly, including when a party “acts inconsistent
with an intent to assert the right.” (quoting Am. Cont’l Life Ins. Co. v. Ranier
Constr. Co., 125 Ariz. 53, 55 (1980)
)).

¶24 Grasshopper appeared voluntarily and sought to defend the
case on the merits. It filed an answer meeting the substantive allegations of
the complaint. Grasshopper also sought affirmative relief from the court
by seeking to exclude expert testimony and other evidence, seeking
sanctions, and moving for a jury trial. This waives any objection to
sufficiency of process. State v. One Single Fam. Residence 1810 E. Second Ave.,
193 Ariz. 1, 6 (App. 1997) (“[T]he defendant who appears in the matter and
litigates it on the merits waives any objection over the failure to properly
serve him with process.”).

¶25 Grasshopper compounded its waiver by acknowledging in no
less than five court filings that it was served, while not raising insufficiency
of process as a defense. Jones, 218 Ariz. at 379 ¶ 23 (“A party may assert an
affirmative defense in its pleadings and still waive that defense by conduct”
that is “inconsistent with an intent to assert the right[.]” (quoting Am. Cont’l
Life Ins. Co., 125 Ariz. at 55)); Austin v. State ex rel. Herman, 10 Ariz. App.
474, 476 (1969) (declining to address argument that service was improper
where defendant “made a ‘general appearance’ and therefore, waived
defects in service.”).

¶26 Grasshopper’s repeated and unequivocal statements to the
court that it was served show it had actual notice of the suit. In its July 9,
2024 motion to set aside, Grasshopper stated, “[d]efendant was served by
personal service on Sladna Bojic, a representative of its registered agent,
L[j]ubisa Srejovic on March 6, 2024.” It attached Ivana Zarubica’s affidavit
to several filings which stated, “Grasshopper Trans, Inc. was served with

8
MCMAHAN v. GRASSHOPPER
Opinion of the Court

the complaint for Brandon L. McMahan v. Grasshopper Trans, Inc. et al.
(CV2024-003517) on March 6, 2024 though a representative of its registered
agent.” In its July 26, 2024 reply to McMahan’s response to the motion to
set aside, Grasshopper wrote, “Defendant acted properly and promptly
upon being served. Per the Affidavit of Service, Defendant was served by
personal service on Sladna Bojic, a representative of its registered agent,
L[j]ubisa Srejovic, on March 6, 2024.” On August 21, 2024 in its first motion
for Rule 60 relief, it stated, “Grasshopper was served on March 6, 2024.”
Finally, in its September 16, 2024 reply to McMahan’s response to the first
motion for Rule 60 relief, it identified March 6, 2024 as the date on which
“Defendant’s statutory agent [was] personally served with the pleading at
the registered company address.”

¶27 It was not until its February 2025 motion for reconsideration
that Grasshopper first argued insufficiency of service of process as grounds
to vacate the entry of default. Beyond the litigation related specifically to
the entry of default, McMahan’s petition for special action identifies at least
nine other filings Grasshopper submitted to the court before challenging
the court’s personal jurisdiction because of insufficient service.

¶28 Grasshopper’s repeated acknowledgements that it was
served and its failure to argue insufficient service as grounds to set aside
the entry of default or otherwise challenge the court’s jurisdiction were
actions inconsistent with preserving this argument. Thus, Grasshopper
waived it again, see Jones, 218 Ariz. at 379 ¶ 23, independent of the waiver
from its failure to make a timely Rule 12(b)(5) motion or to plead the defense
in its answer.

¶29 Grasshopper moved to reconsider in this court, arguing this
opinion contravenes Preston v. Denkins, 94 Ariz. 214, 219 (1963), because
there, our supreme court held that even after a judgment becomes final, a
party may “challenge a judgment on the ground that it is void for lack of
jurisdiction of the parties.” Id. Grasshopper’s argument that the judgment
was void depends on the incorrect assertion, likewise found in its motion
for reconsideration, that “Grasshopper has never held Ms. Bojic out has [sic]
having authority to accept service of process.”

¶30 Grasshopper’s position ignores the fact that it chose
voluntarily to appear to defend this case on the merits, answering the
complaint. Our supreme court instructs us that the jurisdictional defense
of nonservice is thus waived. Montano, 119 Ariz. at 452 (“[T]he appearance
of the defendants has the same effect as a timely and valid service of
process. Were there a jurisdictional defect by the failure to prosecute the

9
MCMAHAN v. GRASSHOPPER
Opinion of the Court

action (serve process) within the time allowed by law, it has been waived
by failing to claim it at the earliest opportunity.”). And Grasshopper’s claim
not to have held out Bojic as having authority to accept service is incorrect.
It did so every time it told the superior court it was served on March 6 –
e.g., “[d]efendant was served by personal service on Sladna Bojic, a
representative of its registered agent, L[j]ubisa Srejovic on March 6, 2024.”
See Paragraph 26, supra.

¶31 Grasshopper’s argument would undo Montano, and does not
follow from Preston, which presumes a valid objection to jurisdiction. No
such objection existed after Grasshopper appeared generally and
voluntarily to defend this suit because, as it told the court and McMahan, it
was previously served by the service upon Bojic.

C. Federal Cases Underscore That the Defense of Sufficiency
of Process May Be Waived By Litigation Conduct, Contrary
to Grasshopper’s Position.

¶32 Grasshopper argues that sufficiency of process cannot be
waived by means other than a written waiver under Rule 4.2, thus allowing
it to litigate the default issue and to defend the case, and then seek to
question service almost one year after McMahan sought to effect it. We
disagree. Relying on the text and purpose of Federal Rule 12, federal courts
have often recognized that a party waives challenges to personal
jurisdiction and insufficient service of process by not timely raising them or
by acting inconsistent with those defenses. While not binding, these cases
are instructive. Flynn v. Campbell, 243 Ariz. 76, 80 ¶ 9 (2017) (recognizing
that federal cases interpreting the federal rules of civil procedure are
instructive and uniformity among state and federal rules decisions is
“highly desirable” (quoting Orme Sch., 166 Ariz. at 304)); Waltner, 231 Ariz.
at 488 ¶ 18 (looking to federal cases to interpret Arizona’s Rule 12). These
federal cases involving long periods of litigation conduct acquiescing in and
ratifying service reinforce our conclusion that Grasshopper waived
insufficiency of process here.

¶33 In Trustees of Central Laborers’ Welfare Fund v. Lowery, the
Seventh Circuit affirmed the denial of a motion to vacate a default judgment
where the defendants litigated the case for years before challenging service
of process. 924 F.2d 731, 732 (7th Cir. 1991). In doing so, the court
acknowledged that a defendant can waive Rule 12(b) defenses through
post-judgment conduct—even when the party alleges the judgment was
void. Id. at 733-34 (“Just as a defendant may waive a defense of improper
service under Rule 12(b)(5) before entry of judgment, so too can a defendant

10
MCMAHAN v. GRASSHOPPER
Opinion of the Court

waive the defense at a later time given the appropriate circumstances.”). It
cited other cases in which courts found waiver “[w]here a defendant leads
a plaintiff to believe that service is adequate and that no such defense will
be interposed[.]” Id. at 733 (citing Broad. Music, Inc. v. M.T.S. Enters., Inc.,
811 F.2d 278, 281 (5th Cir. 1987); Norlock v. City of Garland, 768 F.2d 654, 657
(5th Cir. 1985); R. Clinton Constr. Co. v. Bryant & Reaves, Inc., 442 F.Supp.
838, 848–49 (N.D. Miss. 1977)).

¶34 Lowery is persuasive. Here, as in that case, the defendants
“submitted . . . statements to the court regarding the default without raising
a question as to service” or challenging the judgment as void, appeared at
several hearings, and participated in discovery. Id. at 733. Deepening the
parallel, Grasshopper not only omitted to challenge service for almost a
year, but affirmatively stated at five times that it was served, leading the
court to confirm that it was served in a ruling. In another similarity, Lowery
emphasized that the “defendants and their attorney were aware of the
pending lawsuit and that any objection they had went to the merits of the
complaint, not service.” Id. at 734. Here, Grasshopper argued for months
that it was mistakenly made a party to the lawsuit and that the truck
involved in the accident wasn’t its truck. We agree with the Seventh
Circuit’s reasoning that recognizing waiver by litigating other issues is
consistent with Rule 12’s purpose of eliminating harmful delay and waste
of judicial resources. Id.

¶35 Other federal courts have reached the same conclusion on
analogous facts. The Fifth Circuit affirmed a default judgment where
counsel appeared and litigated a case for many months before raising a
challenge to service, which waived any objection to personal jurisdiction.
Broad. Music, 811 F.2d at 281. As the court explained, “[O]bjections to
personal jurisdiction or to service of process must be raised in a timely
fashion, i.e., as a party's first pleading in the case, or they are waived.” Id.
(citing Fed. R. Civ. P. 12(h)(1); Giannakos v. M/V BRAVO TRADER, 762 F.2d
1295, 1298 (5th Cir. 1985)). The Eighth and Third Circuits have likewise
found waiver in comparable situations. See Yeldell v. Tutt, 913 F.2d 533, 539
(8th Cir. 1990) (finding waiver: recognizing that Rule 12(h) “sets only the
outer limits of waiver; it does not preclude waiver by implication
. . . Asserting a jurisdictional defect in the answer did ‘not preserve the
defense in perpetuity.’” (cleaned up)); In re Asbestos Prods. Liab. Litig. (No.
VI), 921 F.3d 98, 105 (3d Cir. 2019) (finding waiver: recognizing that
defendant’s conduct can waive a personal jurisdiction defense “even where
a defendant has raised the defense” and “[a] party's actions must also be
consistent with the spirit of Rule 12 by diligently advancing its procedural
objections.”). The decisions of these four federal circuit courts reinforce our

11
MCMAHAN v. GRASSHOPPER
Opinion of the Court

reading of Arizona’s Rule 12 as allowing the waiver of objections to the
sufficiency of process through litigation conduct over an extended period.

CONCLUSION

¶36 For all of these reasons, the superior court erred in concluding
that Grasshopper did not and could not waive its challenge to the
sufficiency of service. We thus accept jurisdiction and grant relief by
vacating the court’s order granting Grasshopper’s Rule 60 motion to vacate
the entry of default.

MATTHEW J. MARTIN • Clerk of the Court
FILED: JR

12