Keith Miller, V. Stephanie Miller

Court of Appeals of Washington·Decided June 23, 2026·No. 60564-3·Unpublished

Opinion

Filed Washington State Court of Appeals Division Two

June 23, 2026

IN THE COURT OF APPEALS OF THE STATE OF WASHINGTON

DIVISION II

KEITH D. MILLER, in his capacity as No. 60564-3-II Personal Representative of the Estate of KEVIN D. MILLER,

Respondent,

v.

STEPHANIE MILLER, an individual, UNPUBLISHED OPINION

Appellant.

MAXA, J. – Stephanie Miller appeals the trial court’s grant of summary judgment in favor

of Keith Miller, in his capacity as personal representative of the estate of Kevin Miller.1

Stephanie and Kevin married in 2013 and divorced in 2019. Kevin had a Boeing

Company 401(k) retirement plan administered by Fidelity Workplace Services LLC (Fidelity).

Stephanie was the designated beneficiary on the retirement plan, and she was not removed as the

beneficiary after Stephanie and Kevin’s divorce. When Kevin died intestate in 2023, Fidelity

disbursed approximately $373,000 to Stephanie.

1 We refer to the parties and the decedent by their first names due to their shared last name. No disrespect is intended. No. 60564-3-II

Keith subsequently sued Stephanie for unjust enrichment, arguing that RCW

11.07.010(2)(a) revoked Stephanie’s status as the beneficiary on the Boeing retirement plan

when she and Kevin divorced. The trial court granted Keith’s motion for summary judgment and

required Stephanie to pay the money from the retirement plan disbursement to Keith.

RCW 11.07.010(2)(a) requires that a provision made before the dissolution of a marriage

that relates to the payment the decedent’s interest in a “nonprobate asset” in favor of the

decedent’s former spouse is revoked. RCW 11.07.010(5)(a)(i) defines a “nonprobate asset” as an

employee benefit plan unless “provided otherwise by controlling federal law.” Stephanie argues

that a federal statute, the Employment Retirement Income Securities Act of 1974 (ERISA), 29

U.S.C. § 1001 et seq., is controlling federal law such that Kevin’s retirement plan is not a

nonprobate asset under RCW 11.07.010(5)(a)(i), and therefore RCW 11.07.010(2)(a) does not

apply. Although Stephanie submitted documents in the trial court from Fidelity showing that the

retirement plan was an ERISA benefit plan, she did not specifically argue that RCW

11.07.010(2)(a) did not apply because ERISA was controlling law.

We hold that (1) although Stephanie did not mention ERISA in the trial court, we exercise

our discretion to address her arguments; and (2) the trial court erred when it granted summary

judgment in favor of Keith because RCW 11.07.010(2)(a) does not apply and therefore Keith’s

unjust enrichment claim fails as a matter of law. Accordingly, we reverse the trial court’s grant

of summary judgment in favor of Keith and remand with instructions to enter judgment in favor

of Stephanie.

FACTS

Kevin and Stephanie were married in 2013. Kevin had a Boeing retirement plan

administered by Fidelity. Stephanie was the designated beneficiary on the retirement plan.

2 No. 60564-3-II

Kevin and Stephanie divorced in 2019. The dissolution decree did not address Kevin’s

retirement plan. Stephanie was not removed as the beneficiary of the retirement plan after the

divorce.

Kevin died intestate in April 2023. At the time, Kevin’s retirement plan was valued at

approximately $373,000. Because Stephanie was the listed beneficiary, Fidelity distributed that

amount to her.

Keith was made personal representative of Kevin’s estate. He learned that Fidelity had

distributed the Retirement Plan proceeds to Stephanie. Keith filed a lawsuit against Stephanie

for unjust enrichment. He alleged that Stephanie was unjustly enriched because she lost any

interest in Kevin’s retirement plan when she and Kevin divorced.

Stephanie had an attorney who appeared in the lawsuit. However, it does not appear that

Stephanie’s attorney did any work apart from answering Keith’s complaint, and the attorney

threatened to withdraw from the case after Stephanie could not produce certain documents.

Keith filed a motion for summary judgment with evidence supporting the facts as

described above. He argued that Kevin’s retirement plan was a nonprobate asset, and that RCW

11.07.010(2)(a) provided that the retirement plan’s designation of Stephanie as a beneficiary

became void when Stephanie and Kevin divorced.

The record suggests that Stephanie represented herself in responding to the summary

judgment motion. Stephanie submitted a variety of documents related to Kevin’s retirement plan

to the trial court, including a letter stating that Kevin designated Stephanie as the beneficiary for

the retirement plan.2 Stephanie also stated that she should receive the retirement plan benefits

2 The trial court read Stephanie’s letter into the record as her opposition to summary judgment. The trial court also appears to have considered Stephanie’s documents, even though they were

3 No. 60564-3-II

because she was the listed beneficiary, and that when Kevin retired early in 2020 he still listed

her as the beneficiary. Stephanie stated that when she asked, Fidelity repeatedly told her that she

was the proper recipient of the retirement plan benefits.

Stephanie submitted a letter from Fidelity to the court. The letter stated that Fidelity

administered the retirement plan and that the plan was subject to ERISA’s requirements.

Stephanie also submitted a form from Fidelity that showed that she was Kevin’s designated

beneficiary. The beneficiary designation appears to state that it was entered in January 2022,

after Kevin and Stephanie’s divorce. And the designation lists Stephanie as a spousal beneficiary

to receive 100 percent of the retirement plan. Stephanie also did not mention ERISA in any of

her letters to the court or during oral argument.

The trial court granted summary judgment in favor of Keith. Stephanie appeals the trial

court’s summary judgment order.

ANALYSIS

A. STANDARD OF REVIEW

We review summary judgment orders de novo. Mihaila v. Troth, 21 Wn. App. 2d 227,

231, 505 P.3d 163 (2022). We view all evidence in the light most favorable to the nonmoving

party, including all reasonable inferences. Id. Summary judgment is appropriate when no

genuine issues of material fact exist and the moving party is entitled to judgment as a matter of

law. Id. A genuine issue of material fact exists if reasonable minds can come to different

conclusions on a factual issue. Id. But summary judgment can be determined as a matter of law

not accompanied by a supporting declaration. Keith did not object to these submissions, and the format of Stephanie’s submissions to the trial court is not at issue in this appeal.

4 No. 60564-3-II

if the material facts are not in dispute. Protective Admin. Servs., Inc. v. Dep’t of Revenue, 24 Wn.

App. 2d 319, 325, 519 P.3d 953 (2022).

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