MAY v. MAY

IN THE
ARIZONA COURT OF APPEALS
DIVISION ONE

In the Matter of:

THE JAMES A. AND CAROL A. MAY LIVING TRUST

No. 1 CA-CV 25-0392 PB
FILED 02-17-2026

Appeal from the Superior Court in Maricopa County
No. PB2021-051263
The Honorable Vanessa N. Smith, Judge Pro Tempore

VACATED AND REMANDED

COUNSEL

Spencer Fane LLP, Phoenix
By Kelly C. Mooney, Jessica A. Gale, Serena O’Neill
Co-Counsel for Appellant Charitable Beneficiary Legacy Global Foundation

Murphy Law Firm Inc., Phoenix
By Thomas J. Murphy (argued)
Co-Counsel for Appellant Charitable Beneficiary Legacy Global Foundation

Tiffany & Bosco, Phoenix
By Nora L. Jones, Sarah K. Deutsch (argued), Vanessa R. Heim
Counsel for Appellee Shannon May
 MAY v. MAY, et al.
Opinion of the Court

OPINION

Presiding Judge Daniel J. Kiley delivered the opinion of the Court, in which
Judge D. Steven Williams and Judge Cynthia J. Bailey joined.

K I L E Y, Judge:

¶1 Parties to a dispute are generally not required to participate
in a binding alternative dispute resolution (“ADR”) process unless they
have agreed to do so. As an exception to this general rule, Arizona law
permits trustors to require trust beneficiaries and others to participate in
ADR to settle disputes over “the administration or distribution of the trust.”
A.R.S. § 14-10205. The trust documents in this case include such an ADR
provision.

¶2 The question presented is whether the ADR provision
governs a dispute over whether the trustor’s amendment to the trust was
the product of undue influence. Is a dispute over the validity of an
amendment, in other words, a dispute over the “administration or
distribution of the trust”? We hold that it is not.

FACTS AND PROCEDURAL HISTORY

¶3 Carol May and her husband James May established the James
A. and Carol A. May Living Trust (the “Trust”) in 2003. Carol and James
were co-trustees of the Trust.1

¶4 In 2009, Carol and James amended the trust documents via a
document (the “2009 Amendment”) which, among other things, designated
two of their adult children, Shannon May and Michael May, as successor
co-trustees. The 2009 Amendment named Shannon, Michael, and a third
child, Erin May, as beneficiaries; a fourth child, Stephen May, was expressly
excluded.

¶5 The 2009 Amendment contained an ADR provision, found at
Article 3, § 9, authorizing the appointment of a third party to serve as
“Special Co-Trustee” to resolve disputes among trustees and/or
beneficiaries. Article 3, § 9 reads in pertinent part as follows:

1 In order to avoid confusion, we respectfully refer to members of the May

family by their first names.

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Opinion of the Court

The Special Co-Trustee may unilaterally resolve any dispute,
claim or conflict between beneficiaries . . . between a
beneficiary and a trustee, or between trustees. Such resolution
shall be binding on all parties to [the] Trust and shall not be
subject to review.

No one may file or instigate a claim in a court of law without
first submitting the claim to the Special Co-Trustee for
resolution[.] . . . The Special Co-Trustee may submit the claim
or dispute for mediation and/or binding arbitration.
Subsequent to his or her review, the Special Co-Trustee may
give any claimant the authority to file and maintain an action
in a court of law. Whenever a dispute, conflict, or claim
involves an interpretation or construction of our Trust
Agreement, the Special Co-Trustee may file an action in a
court of competent jurisdiction for the interpretation and
construction of such Trust Agreement, or the Special Co-
Trustee may instruct our Trustee to do so.

¶6 James died in 2017.

¶7 In 2019, Carol amended the trust documents via the “2019
Amendment” which, among other things, removed Michael, Shannon, and
Erin as beneficiaries of the Trust and named a new entity, the May Family
Foundation, as its principal beneficiary. The May Family Foundation was
established as a donor-advised fund of Legacy Global Foundation
(“Legacy”). Attorney Richard E. Durfee is Legacy’s founder and served as
its chief executive officer until his daughter succeeded him in that position.

¶8 Carol died in 2021.

¶9 This case began when Stephen challenged the amendments to
the Trust, alleging, among other things, that the 2019 Amendment was
“void . . . because it was a product of Attorney Durfee’s undue influence
over Carol.” Stephen claimed that Durfee improperly induced the aged and
unwell Carol to amend the trust documents in 2019 to leave the bulk of the
Trust’s assets to Legacy, a foundation in which Durfee’s family had a
financial interest. Shannon, too, argued that the 2019 Amendment should
be “set aside . . . as a product of undue influence.” In response, Legacy
maintained that the 2019 Amendment was validly executed and
enforceable.

¶10 In March 2023, Shannon and Michael, as designated successor
co-trustees, appointed Jerome Elwell as Special Co-Trustee under Article 3,

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Opinion of the Court

§ 9 of the 2009 Amendment to resolve the “dispute regarding the
enforceability of the [2019 Amendment].” The following month, Elwell
notified all the parties of his appointment as Special Co-Trustee. Opining
that “resolution” of the parties’ “dispute regarding the enforceability of the
[2019 Amendment] . . . falls squarely within the authority of Special Co-
Trustee[,]” Elwell directed the parties to submit to him “a detailed
memorandum of law . . . addressing their position on the
validity/enforceability of the [2019 Amendment].”

¶11 Upon receipt of Elwell’s notice, Legacy filed a petition (the
“Petition”) seeking a declaration, inter alia, that A.R.S. § 14-10205 does not
allow trustors to require beneficiaries to submit challenges to the validity
of trust documents to binding ADR. Accordingly, Legacy argued,
Shannon’s challenge to the 2019 Amendment was for the court, not the
Special Co-Trustee, to resolve. Shannon moved to dismiss Legacy’s
Petition, asserting that the Special Co-Trustee appointed under Article 3,
§ 9 of the 2009 Amendment was authorized to resolve her challenge to the
2019 Amendment.

¶12 After oral argument, the superior court accepted Shannon’s
argument that her challenge to the 2019 Amendment must be resolved in
the manner prescribed by Article 3, § 9 of the 2009 Amendment. The court
found that Shannon’s claim was not a challenge to the validity of the 2019
Amendment but, instead, merely a challenge to the manner in which the
2019 Amendment distributed the trust assets. The 2019 Amendment “only
amends . . . the distribution plan” of the 2009 Amendment, the court held,
and so Shannon’s challenge to the amendment fell within the ambit of
A.R.S. § 14-10205 as a dispute over the “administration or distribution” of
the Trust. The court therefore dismissed the Petition and entered partial
final judgment. See Ariz. R. Civ. P. 54(b).

¶13 Legacy timely appealed. We have jurisdiction under A.R.S. §
12-2101(A).

DISCUSSION

¶14 Section 14-10205 authorizes trustors to require beneficiaries
and other interested parties to submit disputes involving “administration
or distribution of the trust” to binding ADR. A.R.S. § 14-10205 (“A trust
instrument may provide mandatory, exclusive and reasonable procedures
to resolve issues between the trustee and interested persons or among
interested persons with regard to the administration or distribution of the
trust.”). The superior court determined that because the 2019 Amendment

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Opinion of the Court

changed the beneficiaries of the Trust, Shannon’s challenge to the 2019
Amendment constituted a dispute over the “administration and
distribution” of the Trust under A.R.S. § 14-10205. Accordingly, the court
concluded, Shannon’s challenge must be resolved by the Special Co-Trustee
under Article 3, § 9 of the 2009 Amendment. Legacy argues the superior
court erred by determining that the 2019 Amendment’s validity was a
proper subject for binding ADR under A.R.S. § 14-10205. We review issues
of statutory interpretation de novo. Aroca v. Tang Inv. Co. LLC, 259 Ariz. 302,
306, ¶ 12 (2025).

¶15 We begin by rejecting the superior court’s determination that
Shannon’s claim amounted to nothing more than a challenge to the 2019
Amendment’s “distribution” of the Trust’s assets. While it is true, as the
court found, that the 2019 Amendment changed the Trust’s beneficiaries,
Shannon challenged more than simply the manner in which the 2019
Amendment distributed trust assets. Instead, Shannon alleged that the 2019
Amendment was void because Carol’s will was overborne when she
executed it. Shannon’s claim is, therefore, a challenge to the validity of the
2019 Amendment, not merely to its distribution of trust assets.

¶16 To determine whether Shannon’s challenge to the 2019
Amendment is subject to the ADR process set forth in Article 3, § 9 of the
2009 Amendment, we must decide whether a challenge to the validity of a
trust amendment constitutes a dispute over “the administration or
distribution of the trust” under A.R.S. § 14-10205.

¶17 Shannon argues that this Court “must liberally construe
[Section] 14-10205 . . . to make effective [the trustors’] intent” that disputes
over the Trust be resolved under the ADR provisions of Article 3, § 9 of the
2009 Amendment. Further, she asserts, Arizona public policy, which
“strongly favors ADR,” compels us to “resolve any doubt about
arbitrability in favor of ADR.”

¶18 “Although it is commonly said that the law favors arbitration,
it is more accurate to say that the law favors arbitration of disputes that the
parties have agreed to arbitrate.” S. Cal. Edison Co. v. Peabody Western Coal
Co., 194 Ariz. 47, 51, ¶ 11 (1999). The presumption in favor of arbitration
applies, therefore, when contracting parties who agreed to an arbitration
clause dispute the clause’s scope. See Granite Rock Co. v. Int’l Broth. of
Teamsters, 561 U.S. 287, 298 (2010) (“[W]here . . . parties concede that they
have agreed to arbitrate some matters pursuant to an arbitration clause, the
law’s permissive policies in respect to arbitration counsel that any doubts
concerning the scope of arbitral issues should be resolved in favor of

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Opinion of the Court

arbitration.” (citation modified)). This principle does not apply here,
however, because neither Shannon nor Legacy ever agreed to Article 3, § 9
of the 2009 Amendment. Instead, it was the trustors, Carol and James, who
added the ADR provision to the trust documents. Because the parties here
never agreed to submit disputes over the Trust to arbitration, we reject
Shannon’s request to construe Section 14-10205 expansively with an eye
toward bringing their dispute within the scope of the trust documents’
ADR provision.

¶19 Instead, our interpretation of A.R.S. § 14-10205 begins, as with
all statutes, with “the plain meaning of the legislature’s chosen words[.]”
Welch v. Cochise Cnty. Bd. of Supervisors, 251 Ariz. 519, 523, ¶ 11 (2021).
Section 14-10205 limits the type of disputes that a trust beneficiary may be
required to submit to binding ADR to those involving “administration” of
a trust or “distribution” of its assets. Because the Arizona Trust Code does
not define those terms, see generally A.R.S. §§ 14-10101 et seq., we interpret
them according to their ordinary meaning, looking to the dictionary for
guidance. In re Drummond, 257 Ariz. 15, 18, ¶ 7 (2024) (“Absent a statutory
definition, courts generally give words their ordinary meaning and may
look to dictionary definitions.” (citation omitted)).

¶20 Black’s Law Dictionary defines “administration,” in the
context of administration of a trust, as “[a] judicial action in which a court
undertakes the management and distribution of property.” Administration,
Black’s Law Dictionary (12th ed. 2024). “Distribution,” in turn, is defined in
part as “[t]he act or process of apportioning or giving out” and, in the
probate context, “the process of dividing an estate.” See Distribution, Black’s
Law Dictionary (12th ed. 2024).2 Neither of these terms is defined in a way
that encompasses the threshold question of the validity of the trust
instrument itself. On the contrary, “administration” and “distribution”
both presuppose the validity of the trust documents. See A.R.S. § 14-10801
(a trust is “administer[ed] . . . in accordance with its terms and purposes”);
In re Estate of Ganoni, 238 Ariz. 144, 146, ¶ 13 (App. 2015) (trust assets are
distributed in accordance with “the terms of the trust”). We will not expand
A.R.S. § 14-10205 to encompass a matter not included within its express
terms. Cicoria v. Cole, 222 Ariz. 428, 431, ¶ 15 (App. 2009) (“Courts will not
read into a statute something that is not within the manifest intent of the
legislature as indicated by the statute itself, nor will the courts inflate,
expand, stretch, or extend a statute to matters not falling within its express

2 The definitions found in the edition of Black’s Law Dictionary that was

current when A.R.S. § 14-10205 was enacted are not materially different. See
Black’s Law Dictionary (8th ed. 2004).

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Opinion of the Court

provisions.”); see also In re Wintersteen Revocation Trust Agreement, 907
N.W.2d 785, 790-91 (S.D. 2018) (citing dictionary definition in holding that
widow’s challenge to the validity of deceased husband’s amendment
removing her as beneficiary was not a matter of trust “administration,” and
therefore her challenge was governed by one-year limitations statute
applicable to suits to determine whether “a revocable trust or any
amendment thereto . . . was valid[],” not by statute applicable to suits over
“administration of the trust”).

¶21 When construing a statute, courts “also consider statutes that
are in pari materia—of the same subject or general purpose—for guidance[.]”
San Diego Gas & Electric Co. v. Ariz. Dep’t of Revenue, 259 Ariz. 105, 108, ¶ 11
(2025) (citation omitted). A separate provision of the Arizona Trust Code
expressly distinguishes between “validity” and “administration.” See
A.R.S. § 14-10107(B) (providing that unless the terms of the trust otherwise
provide, “the laws of the jurisdiction where the trust was executed
determine the validity of the trust,” while “the laws of descent and the law
of the principal place of administration determine the administration of the
trust.” (emphases added)). The Arizona Trust Code’s recognition that
“validity” and “administration” are distinct further supports the
conclusion that disputes over a trust instrument’s validity are not included
within the term “administration or distribution of the trust” as used in
A.R.S. § 14-10205.

¶22 Shannon argues that Subsection C of A.R.S. § 14-10201
supports her position that the validity of a trust is a matter of trust
“administration.” That subsection of Section 14-10201 provides that “[a]
judicial proceeding involving a trust may relate to any matter involving the
trust’s administration, including a request for instructions and an action to
declare rights.” A.R.S. § 14-10201(C). As Shannon correctly notes, an action
to declare rights under a trust could include a challenge to the validity of
trust documents. Because Subsection C of Section 14-10201 states that “trust
administration . . . include[s] . . . an action to declare rights,” Shannon
reasons, the term “trust administration” necessarily includes challenges to
the validity of trust documents.

¶23 In our view, Shannon reads too much into Subsection C of
Section 14-10201. Section 14-10201 as a whole delineates the court’s role in
trust administration. The first two subsections of the statute provide that
while a trust is generally “not subject to continuing judicial supervision,” a
court “may intervene in the administration of a trust to the extent its
jurisdiction is invoked by an interested party or as provided by law.” A.R.S.
§ 14-10201(A), (B). Subsection C makes clear that when a court intervenes

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in trust administration as authorized by Subsection A, the court’s
adjudicative authority includes resolving “a request for instructions and an
action to declare rights.” A.R.S. § 14-10201(C). But nothing in Section 14-
10201 purports to say that every action to declare rights necessarily falls
under the rubric of “trust administration.” The text of Section 14-10201
simply does not support Shannon’s contention that Subsection C somehow
compels the conclusion that every “action to declare rights” under a trust is
necessarily a matter of “trust administration.”

¶24 Courts from other jurisdictions have recognized that disputes
over the validity of a trust instrument are to be resolved through the judicial
process rather than binding ADR. See Gibbons v. Anderson, 575 S.W.3d 144,
148 (Ark. App. 2019) (“[W]here there is an allegation of undue influence or
incompetency of the grantor in the execution of a trust agreement or an
amendment thereto,” the “validity” of the document “cannot” be
“determined by arbitration.”). In Gibbons, the trustor of a trust whose
beneficiaries included his grandchildren amended the terms of his trust
only seventeen days before he died. Two of his grandchildren challenged
the amendment, alleging that the ailing trustor executed it while subjected
to the “undue influence” of his daughter. The trial court rejected the
successor trustees’ motion to compel arbitration of the grandchildren’s
challenge to the amendment and, on appeal, the Arkansas Court of Appeals
affirmed. After surveying statutes and case law from other jurisdictions –
including Arizona’s Section 14-10205 – the Gibbons court found that these
authorities shared “the common theme” that “while a trust agreement may
contain [an] arbitration provision, the arbitration provision cannot compel
arbitration to determine the validity of the trust itself.” Id. at 150. Finding
these authorities instructive, the Gibbons court held that a claim that a trust
amendment was the product of undue influence is a matter for a court, not
an arbitrator, to decide. Id. at 148. Other jurisdictions have reached similar
conclusions. See D. Daniel, “Alternative Dispute Resolution and the
Uniform Trust Code – Colorado’s Approach,” 45 American College of Trust
and Estate Counsel Law Journal 11, 12 (Fall 2019) (citing case law holding that
“issues of validity, such as the decedent’s capacity to make a will or trust,
the genuineness of a will or trust, or execution formalities, are not proper
subjects for arbitration”). Although not controlling, we find these cases
persuasive.

¶25 Although a trust is not a contract, see, e.g., In re Naarden Trust,
195 Ariz. 526, 530, ¶ 15 (App. 1999) (as amended), contract law also informs
our determination that Shannon’s challenge to the validity of the 2019
Amendment is an issue for the court, not the Special Co-Trustee, to resolve.
See Gibbons, 575 S.W.3d at 148-49 (looking to “contract/arbitration

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Opinion of the Court

principles, statutes [and] precedent” when resolving dispute over validity
of trust amendment even though “a trust agreement is not a contract”).
Arizona law recognizes that a claim that a contract was the product of
undue influence is not within the scope of a mandatory arbitration
provision. A.R.S. § 12-3006(A) (“An agreement . . . to submit to arbitration
any . . . controversy arising between the parties to the agreement is valid,
enforceable and irrevocable except on a ground that exists at law or in equity
for the revocation of a contract.” (emphasis added)); Austin v. Austin, 237 Ariz.
201, 206, ¶ 12 (App. 2015) (“Generally, legal or equitable grounds for revoking
any contract include allegations that the contract is void for lack of mutual consent,
consideration or capacity or voidable for fraud, duress, lack of capacity,
mistake, or violation of a public purpose.” (citation modified, emphasis
added)). To interpret A.R.S. § 14-10205 in a like manner — to interpret the
statute, in other words, to exclude from its scope challenges to the validity
of a trust instrument on grounds of undue influence — would be consistent
with contract law.

¶26 In support of her position that a challenge to the validity of a
trust document is a challenge to the “administration or distribution” of the
trust under A.R.S. § 14-10205, Shannon cites In re Flores Revocable Tr., 1 CA-
CV 19-0187, 2020 WL 632602 (Ariz. App. Feb. 11, 2020) (mem. decision). In
Flores, three siblings alleged that their sister exerted undue influence over
their deceased father to secure rights to a house that was owned by a trust
their father had established. After a trial, the court found the siblings had
not proven their undue influence claim, but nonetheless found that the
sister had breached a fiduciary duty she owed as successor trustee of the
trust. The court granted the siblings various forms of relief and awarded
them attorney fees under A.R.S. § 14-11004, which authorizes an award of
fees and expenses “that arise out of and that relate to the good faith defense
or prosecution of a judicial or alternative dispute resolution proceeding
involving the administration of the trust, regardless of whether the defense
or prosecution is successful.” On appeal, the Flores court affirmed the fee
award. In so holding, the Flores court stated that the siblings’ claim that their
sister exercised undue influence over their father, though unsuccessful, was
brought in good faith and that the claim “involve[d] the administration of
the trust” within the meaning of A.R.S. § 14-11004. Id. at *4, ¶ 17 (citation
modified). According to Shannon, Flores stands for the proposition that a
claim to void a trust amendment on grounds of undue influence is “a claim
involving trust administration.”

¶27 As an unpublished memorandum decision, Flores is not
precedential. See R. Ariz. Sup. Ct. 111(c)(1). In any event, the Flores court
was construing A.R.S. § 14-11004 when it affirmed the trial court’s award

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of fees against a trustee who violated her fiduciary duty. Because the
present case involves dissimilar facts and requires us to construe a different
statute, Flores does not bolster Shannon’s position.

¶28 Shannon also relies on Jones v. Fink, 1 CA-SA 10-0262, 2011 WL
601598 (Ariz. App. Feb. 22, 2011). Because Jones is an unpublished
memorandum decision that was issued prior to January 1, 2015, it is not
citable under applicable court rules, and we do not consider it. See R. Ariz.
Sup. Ct. 111(c)(1)(C).

¶29 We hold that A.R.S. § 14-10205 does not empower trustors to
adopt mandatory ADR provisions that deny trust beneficiaries their right
to seek judicial resolution of claims challenging the validity of trust
instruments on the basis of undue influence. Shannon’s challenge to the
2019 Amendment is not subject to the provisions of Article 3, § 9 of the 2009
Amendment, and so the superior court erred in dismissing Legacy’s
Petition seeking a judicial determination that the 2019 Amendment is void.
Whether Carol was subjected to undue influence when she executed the
2019 Amendment is a matter for the court, not the Special Co-Trustee, to
determine.

¶30 Legacy raises other challenges to the dismissal of the Petition,
including, inter alia, its claim that Shannon waived any right she may have
had to compel ADR by participating in the underlying litigation. Because
we hold that Shannon’s challenge to the validity of the 2019 Amendment is
not subject to the Trust’s ADR provision, we do not address Legacy’s
alternative challenges to the dismissal of its petition.

CONCLUSION

¶31 We vacate the superior court’s dismissal of Legacy’s Petition
and remand for further proceedings consistent with this opinion.

¶32 Legacy requests an award of attorney fees under A.R.S. § 14-
1105. Because no party engaged in unreasonable conduct in this appeal,
A.R.S. § 14-1105 does not apply. Legacy may recover costs on appeal upon
compliance with ARCAP 21.

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

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