Constantinos G. Panagopoulos

Tel 202.661.2202
Fax 202.661.2299
Washington, DC

Constantinos G. Panagopoulos is a general commercial litigator with extensive experience in handling a wide variety of matters. He has represented clients in numerous internal and government investigations including the investigation and defense of False Claims Act claims. He has represented lenders in commercial real estate recovery, consumer financial services, and mortgage banking related matters. He also represents clients in various labor and employment matters including Department of Labor audits and investigations, and the investigation and defense of claims related to discrimination, harassment, and other civil rights litigation. He handles grievance arbitrations, and restrictive covenant/trade secret claims.

Dino has significant experience handling commercial litigation involving contracts, partnership disputes, class actions, and lender liability. He also assists financial institutions and other lenders in working out non-performing and defaulted loans and in negotiating and drafting related agreements. He routinely represents clients in enforcement proceedings before federal and state administrative agencies. He also has represented contractors and building owners in hazardous materials cases, including lead-based paint and mold remediation.

Dino's litigation experience includes arbitrations and state and federal jury and non-jury trials. He has argued cases before numerous state and federal appellate courts.

Representative Matters

  • Represented clients in numerous investigations and audits conducted by HUD OIG, FHFA OIG, DOJ, IRS and the SEC relating to alleged commercial mortgage loan fraud
  • Defended and prosecuted contractors in mold-related defective construction claims in Minnesota, the District of Columbia, and Virginia, including claims related to the Senate childcare facility
  • Represented lenders in lender liability actions in Virginia, Pennsylvania, the District of Columbia, New Jersey, Texas, Oklahoma, and Indiana
  • Defended a Texas finance company in claims asserted against it in Maryland bankruptcy court and prosecuted indemnity claims against former partners in federal court
  • Represented approximately 200 credit card issuers in fraud claims related to the theft of millions of credit card account numbers
  • Prosecuted claims against shareholders who attempted to block the sale of a subsidiary of a large financial institution to another company
  • Represented lenders in wrongful foreclosure and other mortgage-related cases in Virginia, Maryland, and the District of Columbia
  • Represented lenders in OIG investigations relating to HUD-insured loans
  • Represented numerous clients in debarment and other enforcement proceedings before HUD
  • Represented Housing Authority in inspector general investigation related to contract awards
  • Represented clients in OFCCP audits in several different states
  • Represented an International Commission in class action claims arising out of unpaid Holocaust-era insurance claims (Steinberg v. International Com. on Holocaust Era Ins. Claims, 133 Cal. App. 4th 689 (Cal. Ct. App. 2005))

Pro Bono Experience

Dino is a member of the firm’s pro bono committee and has represented clients in a variety of pro bono matters. In 2013, he was honored by the Washington Lawyers' Committee for Civil Rights and Urban Affairs in recognition of his outstanding pro bono service contributions to the Washington, D.C. community and was a recipient of Ballard Spahr's 2013 Alan J. Davis Award, for his pro bono work as a member of the Prisoner Civil Rights Team.

Speaking Engagements

Speaker, "Rise of the Gig Economy: Legal Issues All Companies Should Know About Flexible and Contingent Staffing," The Future of Human Resources: Cutting Edge Issues for Every Employer, Ballard Spahr webinar, November 8, 2018

Speaker, “Agency Lending Investigations” Ballard Spahr webinar, November 1, 2018

Panelist, “OIG Investigations and Priorities” HDLI General Counsel Forum, February 11-12, 2018

Speaker, "Setting Ground Rules Before Litigation: Tips for Transactional Lawyers," Ballard Spahr CLE webinar, March 21, 2017

"Health Care Reform - Decisions for Employers in 2013," Ballard Spahr Housing webinar, July 16, 2013

"Avoiding the Pitfalls of 'Bring Your Own Device' Policies," Ballard Spahr webinar, June 12, 2013

"A PHA’s Responsibility under the Patient Protection and Affordable Care Act," Housing and Development Law Institute's HDLI Spring CLE Conference, Washington, D.C., April 25, 2013

Panelist, "The Office of Minority and Women Inclusion of the CFPB and Other Federal Agencies: What It Is and How to Prepare for It," Ballard Spahr webinar, November 5, 2012

Panelist, "The Evolution of Mortgage Servicing: How the CFPB’s Proposed Servicing Rules Will Affect the Industry," Ballard Spahr webinar, September 6, 2012

Panelist, "Office of Federal Contract Compliance Programs: What's in Store for 2012?" Ballard Spahr webinar, November 17, 2011 

Board Memberships

First Baptist Church of Alexandria

George Washington University Law School (J.D. 1991, with honors)

Baylor University (B.A. 1988, cum laude)



District of Columbia



U.S. Court of Appeals for the D.C. Circuit

U.S. Court of Appeals for the Federal Circuit

U.S. Court of Appeals for the Fourth Circuit

U.S. Court of Appeals for the Fifth Circuit

U.S. Court of Appeals for the Ninth Circuit

U.S. Court of Appeals for the 10th Circuit

U.S. District Court for the Central District of California

U.S. District Court for the District of Columbia

U.S. District Court for the District of Maryland

U.S. District Court for the Eastern District of Virginia

U.S. District Court for the Western District of Virginia