Gaston Cap., LLC v. Kellar

North Carolina Business Court·Decided July 30, 2026·No. 25-CVS-6056·Published·Mark A. Davis

Opinion

Gaston Cap., LLC v. Kellar, 2026 NCBC 71.

STATE OF NORTH CAROLINA IN THE GENERAL COURT OF JUSTICE SUPERIOR COURT DIVISION GASTON COUNTY 25CV006056-350

GASTON CAPITAL, LLC; GASTON CAPITAL FUND V, LLC; GASTON CAPITAL INCOME FUND II, LLC f/k/a GASTON CAPITAL FUND VI, LLC; GASTON CAPITAL HEALTHCARE FUND, LLC; GASTON CAPITAL PARTNERS LLLP; MKM & CO.; THE WILLIAM GASTON FUND, LLC; THE WILLIAM GASTON INCOME FUND, LLC; DONALD DOCTOR; DANIEL SASSANO; LARRY ORDER AND OPINION ON WIDNER; SASSANO LE, LLC; DEFENDANTS’ PARTIAL MOTION TO and SASSANO ENDEAVORS, LLC, DISMISS AND PLAINTIFFS’ MOTION Plaintiffs, FOR LEAVE TO AMEND

v.

FRANZ W. KELLAR; ORTHOMEDFLEX, LLC; BIOMEDFLEX, LLC; PRONUVIS, LLC; PRONUVIS (NC), LLC; KINEMAX ENGINEERING, PLLC; AURUM MATRIX LLC; LITTLE ENGINE, LLC; HAROLD CROWDER; and RENOVO LIFE, LLC,

Defendants.

THIS MATTER is before the Court on Defendants’ Partial Motion to Dismiss

(“Motion to Dismiss,” ECF No. 10) and Plaintiffs’ Motion for Leave to File First

Amended Complaint (“Motion to Amend,” ECF No. 26) (collectively, the “Motions”).

The Court concludes that the Motions should be GRANTED in part and DENIED in

part.

Troutman Pepper Locke LLP by William J. Farley, III and Jenna M. White for Plaintiffs Gaston Capital, LLC, Gaston Capital Fund V, LLC, Gaston Capital Income Fund II, LLC f/k/a Gaston Capital Fund VI, LLC, Gaston Capital Healthcare Fund, LLC, Gaston Capital Partners, LLLP, MKM & Co., The William Gaston Fund, LLC, The William Gaston Income Fund, LLC, Donald Doctor, Daniel Sassano, Larry Widner, Sassano LE, LLC, and Sassano Endeavors, LLC.

Alexander Ricks, PLLC by Miller F. Capps and Michael L. Wilson for Defendants Franz W. Kellar, Orthomedflex, LLC, Biomedflex, LLC, Pronuvis, LLC, Pronuvis (NC), LLC, Kinemax Engineering, PLLC, Aurum Matrix, LLC, Little Engine, LLC, Harold Crowder, and Renovo Life, LLC.

Davis, Judge.

INTRODUCTION

1. This case involves a dispute arising from a series of loans made between

2013 and 2025 by a group of private equity companies to fund biomedical research.

FACTUAL AND PROCEDURAL BACKGROUND

2. The Court does not make findings of fact in connection with a motion to

dismiss under Rule 12(b)(6) of the North Carolina Rules of Civil Procedure and

instead recites those facts contained in the complaint (and in documents attached to,

referred to, or incorporated by reference in the complaint) that are relevant to the

Court’s determination of the motion. See, e.g., Window World of Baton Rouge, LLC

v. Window World, Inc., 2017 NCBC LEXIS 60, at *11 (N.C. Super. Ct. July 12, 2017).1

3. Defendant Franz Kellar is a North Carolina-based engineer who

develops and markets medical device products through his companies OrthoMedFlex,

LLC (“OrthoMedFlex”), BioMedFlex, LLC (“BioMedFlex”), ProNuVis, LLC

1 As discussed below, the Court has elected to address in this Opinion both Defendants’ motion to dismiss Plaintiffs’ original Complaint and Plaintiffs’ motion seeking leave to file their proposed amended complaint. The factual allegations cited herein are to Plaintiffs’ proposed amended complaint. (“ProNuVis”), ProNuVis (NC), LLC (“ProNuVis (NC)”), Aurum Matrix, LLC

(“Aurum”), Kinemax Engineering, PLLC (“Kinemax”), Dynamic Balancer Systems,

LLC (“DB Systems”), Spectral–Flush Anchor Systems, LLC (“Spectral”), and Renovo

Life, LLC (“Renovo”) (collectively, the “Kellar Entities”). (Am. Compl., ECF No. 26.1,

¶¶ 4–6, 8–10, 35, 52–53.) 2

4. Plaintiffs Gaston Capital, LLC (“Gaston Capital”), Gaston Capital Fund

V, LLC (“Capital Fund V”), Gaston Capital Income Fund II, LLC f/k/a Gaston Capital

Fund VI, LLC (“Capital Fund VI”), Gaston Capital Healthcare Fund, LLC

(“Healthcare Fund”), Gaston Capital Partners, LLLP (“Capital Partners”), MKM &

Company (“MKM”), The William Gaston Fund, LLC (“WG Fund”), The William

Gaston Income Fund, LLC (“WG Income Fund”), Sassano LE, LLC (“Sassano LLC”),

and Sassano Endeavors, LLC (“Sassano Endeavors”) are private equity companies

doing business in North Carolina. (Am. Compl. ¶¶ 22–29.)

5. Plaintiffs Donald Doctor, Daniel Sassano, and Larry Widner are all

North Carolina residents. (Am. Compl. ¶¶ 30–32.)

6. Defendant Harold Crowder is a North Carolina resident and was the

sole managing member of Defendant Little Engine, LLC (“Little Engine”), a North

Carolina limited liability company that was administratively dissolved on 24 July

2025. (Am. Compl. ¶¶ 44–45.)

2 OrthoMed, BioMedFlex, ProNuVis (NC), Kinemax, Aurum, and Renovo are all North Carolina limited liability companies. DB Systems, Spectral, and ProNuVis are Delaware limited liability companies. All of the entities do business in North Carolina. (Am. Compl. ¶¶ 36–44). 7. At all relevant times, Kellar relied on third-party investors (such as

Plaintiffs) to provide capital in the form of investments or loans 3 to fund his

development and marketing of medical devices. (Am. Compl. ¶¶ 54–55.)

8. Plaintiffs allege that they have collectively paid out over $10 million to

the Kellar Entities for this purpose as reflected in a series of contracts evidencing the

transactions. (Am. Compl. ¶¶ 88–89.) 4

9. Most recently, Kellar’s focus has been on developing devices for ligament

repair procedures—specifically the Dynamic Balancer and the Flush Anchor

(collectively, the “Devices.”) (Am. Compl. ¶¶ 8–10.)

10. Plaintiffs allege “Kellar represented that Plaintiffs’ capital

contributions could be repaid, at least in part, through future capitalization of the

[D]evices, thereby suggesting that the Kellar Entities would own the intellectual

rights to the [D]evices.” (Am. Compl. ¶ 80.)

11. Plaintiffs assert that Kellar nevertheless proceeded to transfer or assign

the intellectual property rights in the Devices to Little Engine, and then

“orchestrated the further transfer and/or assignment of those rights to DB Systems

and Spectral.” (Am. Compl. ¶ 83.)

3 The Court notes that throughout the Amended Complaint, Plaintiffs use the term “investments” to reference both loan transactions and purchases of equity stakes in the Kellar Entities.

4 Although none of these contracts are attached to any of the pleadings that have been filed

by the parties, Plaintiffs’ original and Amended Complaint—as discussed in more detail below—identify all of the contracts that are relevant to this case and—for virtually all of them—list the lender, the debtor, the amount of the loan, the date the promissory note was executed, and the applicable maturity date. (Am. Compl. ¶ 89.) 12. According to Plaintiffs, Kellar did so for the purpose of keeping the

Devices (and the money they generated) separate from the financial obligations owed

by the Kellar Entities to Plaintiffs. (Am. Compl. ¶¶ 147–51.)

13. On 26 June 2025, a Notice of Default was sent on behalf of Plaintiffs

Gaston Capital, Capital Fund V, Capital Fund VI, Healthcare Fund, Capital

Partners, MKM, WG Fund, and WG Income Fund to Defendants. (Am. Compl. ¶ 71.)

This notice of default demanded payment of $10,340,873.31. (Am. Compl. ¶ 72.)

14. On 27 August 2025, a Notice of Default and Demand for Payment was

sent to Kellar and OrthoMedFlex in the amount of $418,750 on behalf of Plaintiff

Widner. (Am. Compl. ¶¶ 74–75.)

15. Plaintiffs initiated this action on 23 October 2025 by filing a Complaint

in Gaston County Superior Court (ECF No. 3). In the Complaint, Plaintiffs asserted

claims for (1) breach of written contract, (2) breach of oral contract, (3) unjust

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