SUMMARY ORDER

Pro se appellant Kenneth Heller, a former attorney who represented debtor Ruby Emanuel in a wrongful death action in New York State court until he was disbarred in 2004, see In re Heller, 9 A.D.3d 221, 780 N.Y.S.2d 314 (1st Dep’t 2004), appeals from a judgment affirming the bankruptcy court’s order denying his Chapter VII claim for attorney’s fees, and from an order denying reconsideration. “In an appeal from a district court’s review of a bankruptcy court decision, we review the bankruptcy court decision independently, accepting its factual findings unless clearly erroneous [and] reviewing its conclusions of law de novo.” In re Enron Corp., 419 F.3d 115, 124 (2d Cir. 2005) (internal quotation marks omitted). Applying that standard here, we assume the parties’ familiarity with the facts and rec *50 ord of prior proceedings, referencing them only as necessary to explain our decision to affirm.

1. Settlement Approval

As a threshold matter, we lack jurisdiction to review Heller’s challenge to the bankruptcy court’s November 2008 order approving Emanuel’s $3.65 million settlement of the wrongful death action because Heller’s January 2010 notice of appeal was untimely as to that order by over a year. See Fed. R. Bankr.P. 8002(a) (requiring notice of appeal to be filed within 14 days of entry of bankruptcy court order or judgment); In re Siemon, 421 F.3d 167, 169 (2d Cir. 2005) (holding time limit imposed by Fed. R. Bankr.P. 8002(a) to be jurisdictional).

2. Denial of Attorney’s Fees

We review the bankruptcy court’s denial of attorney’s fees for abuse of discretion and identify none here. See In re Bayshore Wire Prods. Corp., 209 F.3d 100, 103 (2d Cir. 2000). Whether 11 U.S.C. § 330 or New York law on quantum meru-it controlled the challenged decision, the bankruptcy court properly denied Heller’s fee application. 1

Heller argues that he was entitled to a substantial award of fees because he was a “pre-eminent, superbly qualified, maritime lawyer,” “expended an incredible amount of effort and funds,” and “laid the entire groundwork for [the] settlement.” Appellant Br. at 49-50. Because Heller’s con-clusory assertions lack any credible evi-dentiary support in the record, we identify no clear error in the bankruptcy court’s finding that Heller failed to establish the time he worked on Emanuel’s wrongful death suit. Heller refused to testify at an evidentiary hearing held for that purpose, and the bankruptcy court found the witness who testified on his behalf entirely unworthy of belief. Nor did the bankruptcy court clearly err in finding that Heller failed to demonstrate that his representation was beneficial to Emanuel’s case, where the verdict he obtained for Emanuel at trial was vacated on appeal. Further, the bankruptcy court acted within its discretion in finding that Heller’s post-disbarment refusal to turn over case files to Emanuel’s substitute counsel in contravention of a New York State court order prejudiced Emanuel. Under these circumstances we identify no error in the bankruptcy court’s refusal to award Heller any attorney’s fees.

3.Other Issues

Because we affirm the bankruptcy court’s decision to deny Heller attorney’s fees, we need not consider his challenges to the fees awarded to substitute counsel as Heller has no interest affected by that award. See In re DBSD N. Am., Inc., 634 F.3d 79, 88-89 (2d Cir. 2011). Further, Heller has abandoned any challenge to the *51 district court’s denial of his motion for reconsideration by failing to raise any such challenge in his appellate brief. See Hutchison v. Deutsche Bank Sec. Inc., 647 F.3d 479, 491 n. 5 (2d Cir. 2011).

4. Sanctions

Emanuel moves for sanctions, arguing that Heller has harassed her by filing frivolous motions and applications with various courts. The district court denied a similar sanctions application filed by Emanuel, but Emanuel did not cross-appeal. See generally Rangolan v. Cnty. of Nassau, 370 F.3d 239, 254 (2d Cir. 2004) (noting that this court rarely disregards partys failure to file cross-appeal). Nor does Emanuel point to any new or distinct harassment on appeal that would warrant our imposing sanctions on Heller in the first instance.

5. Conclusion

We have considered Heller’s other arguments on appeal and find them to be without merit. Accordingly, the district court’s judgment affirming the bankruptcy court order and the district court order denying reconsideration are AFFIRMED, the motion for sanctions is DENIED, and the motion to strike portions of the appendix is DENIED as moot.