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PilieroMazza PLLC

Nathan Jahnigen

Associate*

Washington, DC

202.655.4179

njahnigen@pilieromazza.com

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Bio

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To help safeguard company assets, Nathan supports clients in all phases of the litigation lifecycle,  including providing pre-litigation counseling, risk management guidance, and compliance advice. His practice also extends to representing clients in adversarial litigation, arbitration, and other forms of dispute resolution, as well as assisting clients with internal and government investigations. Clients from the commercial and government contracting sectors rely on his attention to detail and commitment to delivering unparalleled client service.

Nathan previously served as a summer associate at PilieroMazza. During his time with the firm, he played an integral role in the drafting of an appellate brief in the Court of Appeals of Virginia, which ultimately resulted in a total victory for the client in a $15 Million contract dispute.

While in law school, Nathan served on the University of Baltimore Law Review as Assistant Managing Editor. He was also a research assistant to his law school Professor Sonya Ziaja, as well as an intern for the Honorable Douglas R.M. Nazarian of the Appellate Court of Maryland in Annapolis. Prior to law school, Nathan worked in the construction industry, assisting construction supervisors and lead carpenters with blueprint investigations, structural designs, project planning, project layout, and installations. He also was involved in maintaining compliance with municipal building codes and health and safety regulations, and satisfying permit requirements.

*Not admitted to practice law in D.C. Attorney is practicing under the supervision of an attorney or attorneys licensed to practice law in D.C.

Related Practice Areas

  • Litigation & Dispute Resolution
  • Labor & Employment
  • Construction
  • Bid Protests
  • Audits & Investigations
  • False Claims Act

Insights

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Articles

  • Managing Litigation Risk During the Business Lifecycle, Part 2: Business Acquisition and Post-Closing Disputes, The PM Legal Minute Blog, 04.25.25
  • FCA Settlement Highlights Importance of Accurate Small Business Certifications in Government Contracting, The PM Legal Minute Blog, 02.06.25

Events

  • Understanding and Avoiding Affiliation for Small Business Government Contractors, Virginia APEX Accelerator Event, 12.02.25

Credentials

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Education

  • University of Baltimore School of Law, J.D., 2024, magna cum laude
  • University of Maryland, Baltimore County, B.A., History, 2019

Admissions

  • Maryland

Not admitted to practice law in D.C. Attorney is practicing under the supervision of an attorney or attorneys licensed to practice law in D.C.

Activities

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Activities

  • Assistant Managing Editor, University of Baltimore Law Review, 2022-2024
Bio Insights Credentials Activities

To help safeguard company assets, Nathan supports clients in all phases of the litigation lifecycle,  including providing pre-litigation counseling, risk management guidance, and compliance advice. His practice also extends to representing clients in adversarial litigation, arbitration, and other forms of dispute resolution, as well as assisting clients with internal and government investigations. Clients from the commercial and government contracting sectors rely on his attention to detail and commitment to delivering unparalleled client service.

Nathan previously served as a summer associate at PilieroMazza. During his time with the firm, he played an integral role in the drafting of an appellate brief in the Court of Appeals of Virginia, which ultimately resulted in a total victory for the client in a $15 Million contract dispute.

While in law school, Nathan served on the University of Baltimore Law Review as Assistant Managing Editor. He was also a research assistant to his law school Professor Sonya Ziaja, as well as an intern for the Honorable Douglas R.M. Nazarian of the Appellate Court of Maryland in Annapolis. Prior to law school, Nathan worked in the construction industry, assisting construction supervisors and lead carpenters with blueprint investigations, structural designs, project planning, project layout, and installations. He also was involved in maintaining compliance with municipal building codes and health and safety regulations, and satisfying permit requirements.

*Not admitted to practice law in D.C. Attorney is practicing under the supervision of an attorney or attorneys licensed to practice law in D.C.

Related Practice Areas

  • Litigation & Dispute Resolution
  • Labor & Employment
  • Construction
  • Bid Protests
  • Audits & Investigations
  • False Claims Act

Articles

  • Managing Litigation Risk During the Business Lifecycle, Part 2: Business Acquisition and Post-Closing Disputes, The PM Legal Minute Blog, 04.25.25
  • FCA Settlement Highlights Importance of Accurate Small Business Certifications in Government Contracting, The PM Legal Minute Blog, 02.06.25

Events

  • Understanding and Avoiding Affiliation for Small Business Government Contractors, Virginia APEX Accelerator Event, 12.02.25

Education

  • University of Baltimore School of Law, J.D., 2024, magna cum laude
  • University of Maryland, Baltimore County, B.A., History, 2019

Admissions

  • Maryland

Not admitted to practice law in D.C. Attorney is practicing under the supervision of an attorney or attorneys licensed to practice law in D.C.

Activities

  • Assistant Managing Editor, University of Baltimore Law Review, 2022-2024
  • About Us
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  • Insights
  • Join Us!
  • Contact Us
  • PM Staff

Washington, DC
1001 G Street NW
Suite 1100
Washington, DC 20001

202.857.1000

Boulder, CO
1434 Spruce Street
Suite 100
Boulder, CO 80302

303.501.1300

Annapolis, MD
60 West Street
Suite 201
Annapolis, MD 21401

410.500.5551

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