Yanan Sun v. Wei Mig Chang

CourtCourt of Chancery of Delaware
DecidedJuly 2, 2026
Docket2025-1228-LM
StatusPublished

This text of Yanan Sun v. Wei Mig Chang (Yanan Sun v. Wei Mig Chang) is published on Counsel Stack Legal Research, covering Court of Chancery of Delaware primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Yanan Sun v. Wei Mig Chang, (Del. Ct. App. 2026).

Opinion

COURT OF CHANCERY OF THE STATE OF DELAWARE LOREN MITCHELL LEONARD L. WILLIAMS JUSTICE CENTER MAGISTRATE IN CHANCERY 500 NORTH KING STREET, SUITE 11400 WILMINGTON, DE 19801-3734

Date Submitted: March 17, 2026 Final Report: July 2, 2026

John G. Day, Esquire David L. Finger, Esquire Caneel Radinson-Blasucci, Esquire 1201 N. Orange Street, 7th Floor Prickett, Jones & Elliot, P.A. Wilmington, DE 19801 1310 N. King Street Wilmington, DE 19801

RE: Yanan Sun v. Wei Ming Chang, et al., C.A. No. 2025-1228-LM

Dear Counsel,

This action concerns the composition of the board of directors of Marbella

Delaware. Plaintiff Yanan Sun and Defendant Wei Ming Chang are the Company’s

co-founders, stockholders, and directors. Their personal and business relationships

deteriorated, giving rise to a broader dispute concerning the control of the Company.

At the center of that dispute is Yong Song, a business associate of the Company who

has been appointed as the Company’s third director.

Sun contends that Song was validly appointed to Marbella Delaware’s board

through corporate actions taken in 2023 and later reaffirmed in 2024. Chang

disagrees. He argues that the steps taken to appoint Song failed to satisfy Delaware law and the Corporation’s governing documents. Chang further argues that Song’s

appointment arose from a relationship between Sun and Song, which Sun allegedly

failed to disclose before the parties executed the relevant agreements. Sun

commenced this action pursuant to Sections 205 and 225 of the Delaware General

Corporation Law (“DGCL”), seeking a declaration that Song was validly appointed

as a director of Marbella Delaware.

The Court concludes that Song was validly appointed as a director of Marbella

Delaware. The record demonstrates that Chang and Sun agreed to add Song to the

board, executed the relevant documents implementing that decision, and

subsequently treated Song as a director. Chang failed to establish that any alleged

nondisclosure rendered the challenged corporate actions invalid. Accordingly,

judgment is entered in Sun’s favor.

This is my Final Report.

I. FACTUAL BACKGROUND

A. Marbella Delaware and Its Founders

The parties operate a vacation-rental management business serving property

owners primarily in California, Washington, Colorado, and Hawaii. 1 They operate

several entities under the name Marbella Lane. Wei Ming Chang (“Defendant”) and

1 Docket Item (“D.I.”) 1 at 2–3; D.I. 48 at 3.

2 Yanan Sun (“Plaintiff”) founded the business together in 2018 when they were

married, and spent several years building it into a growing property-management

platform.2

In 2022, Plaintiff and Defendant reorganized Marbella Lane’s corporate

structure (the “Restructuring”). 3 As part of the Restructuring, they formed Marbella

Lane Holdings, Inc. and Marbella Lane (DE), Inc. (collectively, “Marbella

Delaware” or the “Company”).4 Plaintiff and Defendant are the sole stockholders

of Marbella Lane Holdings, Inc. each holding a fifty-percent ownership interest.5

Marbella Lane Holdings, Inc. wholly owns Marbella Lane (DE), Inc., which serves

as the sole member of Marbella Lane LLC, the principal operating entity through

which Marbella Lane conducts its business in California.6 Although Marbella Lane

operates through multiple affiliated entities, this dispute concerns Marbella

Delaware because it is the entity whose board of directors allegedly appointed Song

and whose corporate governance is at issue in this action.

2 D.I. 48 at 3. 3 Id. 4 Id. 5 Id. 6 Id.

3 Although Chang and Sun were married, their personal relationship

deteriorated, and they have been separated since November 2022. 7 Their separation

did not immediately alter the Company’s governance structure or day-to-day

operations. Instead, both founders continued participating in management while

attempting to grow the business and address their ongoing financial challenges. As

Marbella Delaware’s need for capital and stability increased, so too did its reliance

on Yong Song, one of the Company’s property-owner clients, and an investor.8

B. Song’s Expanding Role in the Business

Song became increasingly important to Marbella Delaware during 2022 and

2023. 9 He owned multiple properties managed through the Marbella Delaware

platform.10 Marbella Delaware also depended on Song for financial support.11

Between late 2022 and early 2024, Song loaned substantial sums to the business

while it navigated periods of financial strain.12 By 2023, Song communicated

regularly with Plaintiff and Defendant regarding Marbella Delaware’s operations,

personnel matters, and initiatives.13 As Marbella Delaware’s financial pressures

7 D.I. 48 at 8. 8 Id. at 3–4. 9 Id. at 4, 6–7. 10 D.I. 1 at 5–6. 11 D.I. 63 at 8–9. 12 D.I. 49 at 4–5. 13 D.I. 48 at 6–8; D.I. 63 at 9–10.

4 persisted and disagreements between the founders increased, Plaintiff and Defendant

began discussing a more formal role for Song within the Company.14 By Spring of

2023, both founders viewed Song as someone capable of contributing to Marbella

Delaware beyond the role of customer and lender.15

C. The Parties’ Decision to Formalize Song’s Role

In May 2023, a human resources contractor retained by the Company

recommended, amongst other things, to have a third person added as a director in an

effort to resolve some of the business conflicts between the parties. 16 The parties

agreed that Song would be the third party to assist the Company. 17

In June 2023, documents were circulated formalizing Song’s anticipated

relationship with Marbella Delaware, including materials relating to his proposed

appointment to the Board and a contemplated 10% equity grant. 18 The grant was

conditioned on a Section 409A valuation because Company counsel advised that

such a valuation was necessary to ensure the options were granted at fair market

value.19 Defendant acknowledged signing the Director Agreement (“Director

14 See Trial Tr. at 11–12 (Sun) (“And at that time [May 2023], because of the conflicts Willy and I had, the company cannot run properly.”); JX 6.0006–.0024. 15 See Trial Tr. at 9–11; JX 6.0006. 16 See Trial Tr. at 10; JX 5. 17 See Trial Tr. at 10; JX 5. 18 See JX 6.0004; D.I. 48 at 3–4. 19 See JX 6.0002.

5 Agreement” or “Agreement”) and the written-consent materials relating to Song’s

appointment. Defendant did not dispute that counsel prepared and circulated

documents to implement that Agreement. Subsequently, the parties continued to

discuss the terms of that grant through late 2023 and into early 2024, including

Song’s request that the options be issued in his son’s name. 20 Counsel later

circulated an updated Director Agreement reflecting those discussions. 21

D. Marbella Delaware’s Documents Concerning the Board of

Directors

Marbella Delaware’s Bylaws (the “Bylaws”) authorized stockholders to elect

directors, act by written consent, and fill newly created directorships. For the

purposes of the analysis, several provisions are relevant to Song’s purported

appointment.

i. Section 8(a) of the Bylaws defines “Requisite Holders” as Plaintiff and

Defendant.22

ii. Section 8(b) of the Bylaws provides:

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Yanan Sun v. Wei Mig Chang, Counsel Stack Legal Research, https://law.counselstack.com/opinion/yanan-sun-v-wei-mig-chang-delch-2026.