NOT PRECEDENTIAL 

UNITED STATES COURT OF APPEALS 

FOR THE THIRD CIRCUIT 

___________ 

No. 23-2943 

___________ 

In re: SUNG HO MO, 

 Appellant 

____________________________________ 

On Appeal from the United States District Court 

for the District of New Jersey 

(D.C. Civil Action No. 2-22-cv-07451) 

District Judge: Honorable Madeline C. Arleo 

____________________________________ 

Submitted Pursuant to Third Circuit LAR 34.1(a) 

August 28, 2024 

Before: BIBAS, PORTER, and MONTGOMERY-REEVES, Circuit Judges 

(Opinion filed: August 30, 2024) 

___________ 

OPINION*

___________ 

PER CURIAM 

 At the root of this appeal is a foreclosure action initiated by HSBC Bank on behalf 

of Wells Fargo against appellant Sung Ho Mo and his wife, non-party Dae Sung Shim, 

related to their residence in Northern New Jersey. See HSBC Bank USA v. Shim, No. 

*

 This disposition is not an opinion of the full Court and pursuant to I.O.P. 5.7 does not 

constitute binding precedent.
2 

SWC-F-007302-16 (N.J. Super. Ct. – Chancery Div.).1 The state court granted summary 

judgment to HSBC and later authorized a foreclosure sale, but it withheld entry of final 

judgment due to the onset of the COVID-19 pandemic. Final judgment was entered 

around two years later. 

 To stop the effect of the foreclosure judgment, Mo filed a pro se bankruptcy 

petition under Chapter 11. Wells Fargo, however, lodged a proof of claim related to the 

foreclosure judgment, obtained relief from the automatic stay, and pressed forward. 

 Meanwhile, Mo filed in the Bankruptcy Court numerous motions and adversary 

proceedings, essentially seeking to relitigate issues decided by the state court in the 

foreclosure action. The Bankruptcy Court’s decisions rejecting those filings were 

affirmed on appeal by the District Court, mostly in an October 13, 2023 letter order that 

covered nine different bankruptcy dockets. The District Court warned Mo about 

frivolous and redundant filings and enjoined him from filing anything related to the 

foreclosure action or bankruptcy proceedings without first seeking leave of court. 

 Proceeding pro se, Mo appeals certain aspects of the District Court’s October 13, 

2023 order. We have jurisdiction under 28 U.S.C. §§ 158(d)(1) and 1291. Insofar as we 

are reviewing the underlying determinations of the Bankruptcy Court, “we stand in the 

shoes of the district court, applying a [clear-error] standard to the bankruptcy court’s 

1

 Mo had been self-employed as a loan broker. His default on mortgage payments 

appears to have overlapped with his criminal prosecution, which ended with Mo’s 

pleading guilty to one count of conspiracy to commit bank fraud and being sentenced to 

time served, supervised release, and restitution in excess of one million dollars. See

United States v. Mo, DC Crim. No. 2:16-cr-00104, ECF No. 22 (D.N.J. Nov. 15, 2016) 

(Judgment). 
3 

findings of fact and a plenary standard to that court’s legal conclusions.” In re IT Group, 

Inc., 448 F.3d 661, 667 (3d Cir. 2006) (citation omitted). We may affirm on any grounds 

supported by the record. Tourscher v. McCullough, 184 F.3d 236, 240 (3d Cir. 1999). 

 Mo’s opening brief identifies multiple issues for consideration on appeal.2 They 

all amount to challenges to the state foreclosure judgment, or to Wells Fargo’s related 

proof of claim in the bankruptcy case.3 

 Insofar as Mo seeks direct appellate review of the state court’s final judgment in 

the foreclosure action, he could have, and should have, pursued that path in the state court 

system; he is prohibited by the Rooker-Feldman doctrine4 from doing so in the lower 

federal courts. See In re Madera, 586 F.3d 228, 232 (3d Cir. 2009); see also Malhan v. 

Sec’y United States Dep’t of State, 938 F.3d 453, 459-60 (3d Cir. 2019) (identifying 

“situations in which there is a Rooker-Feldman ‘judgment’”). Mo’s arguments are 

otherwise barred by preclusion principles, for substantially the reasons given by the 

Bankruptcy Court, when it granted HSBC’s and Wells Fargo’s motion to dismiss one of 

Mo’s several adversary proceedings. See In re Mullarkey, 536 F.3d 215, 225 (3d Cir. 

2008) (“Both New Jersey and federal law apply res judicata or claim preclusion when 

2

 Issues not raised in Mo’s opening brief—for example, whether it was proper for the 

District Court to have imposed filing restrictions—have been forfeited. See M.S. by & 

through Hall v. Susquehanna Twp. Sch. Dist., 969 F.3d 120, 124 n.2 (3d Cir. 2020). 

3

 Mo also argues that the District Court should have held an evidentiary hearing to 

determine whether to impose criminal penalties against Wells Fargo and its counsel. We 

need not address that argument any further. 

4 See D.C. Ct. of Appeals v. Feldman, 460 U.S. 462 (1983); Rooker v. Fid. Tr. Co., 263 

U.S. 413 (1923). 
4 

three circumstances are present: (1) a final judgment on the merits in a prior suit 

involving (2) the same parties or their privies and (3) a subsequent suit based on the same 

cause of action. In addition, New Jersey courts bar the relitigation of finally determined 

issues through the doctrine of collateral estoppel.”) (internal citation and quotations 

omitted); see also Mori v. Hartz Mountain Dev. Corp., 472 A.2d 150, 155 (N.J. Super. 

Ct. - App. Div. 1983) (“[T]he entire controversy doctrine applies not only to matters 

actually litigated, but to all aspects of a controversy that might have been thus litigated 

and determined.”).5 

 Accordingly, the judgment of the District Court will be affirmed. Mo’s pending 

motions are all denied. 

5

 New Jersey law defines the preclusive effect of a judgment issued by a New Jersey 

court. Paramount Aviation Corp. v. Gruppo Agusta, 178 F.3d 132, 135 (3d Cir. 1999).