Our Team:
National Network of Lawyers


Oberheiden P.C. does not use junior lawyers or secretaries to handle your case. Our attorneys are well-recognized trial and defense attorneys with substantial experience in the area of law most relevant to you. Each lawyer shares his or her background in our biographies and when you call you we assess together who could help you best, which lawyer has the most experience in what you need.

  • No Junior Lawyers, No Associates, No Secretaries
  • Direct Access to YOUR Attorney from Day One
  • We Are Available When You Need Us
  • We Will Keep You Informed about Your Case
Dr. Nick Oberheiden


Lynette S. Byrd

Former Federal Prosecutor

Amanda Marshall

Local Counsel
Former U.S. Attorney

Aaron L. Wiley

Local Counsel
Former Federal Prosecutor

Richard T. Simmons, Jr.

Local Counsel
Former Chief Criminal & Civil Division (EDLA)

Subodh Chandra

Local Counsel
Former Federal Prosecutor

Elizabeth K. Stepp


R. Brandon Johnson

Local Counsel
Former Federal Prosecutor

Bill Tunkey

Local Counsel
Former Prosecutor

Donald A. Lykkebak

Local Counsel
Former Prosecutor

Erick Cruz

Local Counsel
Former Miami Prosecutor

Michael A. Rataj

Local Counsel
Federal Defense Counsel

David Raben

Local Counsel

Joseph E. Nascimento

Local Counsel

Jeffrey Howell

Local Counsel

Ellen Comley

Senior Counsel

Pascual C. Meyer

Senior Counsel

Joseph J. Reinke

Local Counsel
Former Assistant Attorney General

Cameron J. Blazer

Local Counsel

Peter T. Phillips

Local Counsel

John W. Sellers

Local Counsel
Former Senior Trial Attorney (U.S. Department of Justice)

Wilfred S. Rattigan

Local Counsel
Former FBI Official

Experts & Consultants

Roger Bach

Former Special Agent, OIG

Dennis A. Wichern

Former Special Agent-in-Charge

Chris J. Quick

Former Special Agent (FBI)
Former Special Agent (IRS-Criminal Division)

Kevin M. Sheridan

Retired Supervisory Special Agent (FBI)

Ray Yuen

Former Supervisory Special Agent (FBI)

Gamal Abdel-Hafiz

Former Supervisory Special Agent (FBI)

Michael S. Koslow

Former Supervisory Special Agent (DOD-OIG)

Wade A. McFaul

Assistant Special Agent-in-Charge (Ret.) U.S. Department of Health and Human Services

Randall C. Till

Former Inspector-in-Charge (USPIS)

Greg S. Muroff

Supervising Investigator (Medicaid Fraud Control Unit, Ret.)

Howard Manresa

FDA Compliance

Mary Rochée

DEA Diversion Program Manager (Retired)

Aprile Whitesell

DEA Diversion Investigator (Retired)

Chris Anderson

Compliance Consultant

Beverly Gibson

Compliance Auditor

Dr. Stephen Taylor

DOL Consultant

Valerie Rivera

Private Investigator

NOTICE: All visitors to this Website are informed that Oberheiden, P.C. (“Firm”) affiliates with independent and separate attorneys (“Local Counsel”) and their respective law firms on a case by case basis. If and when this applies to a particular client, we will disclose the details to client in writing for their approval. In some cases, pursuant to Rule 7.04 of the Texas Disciplinary Rules of Professional Conduct and the equivalent in other jurisdictions, a case is referred to a Local Counsel, the Firm will not participate in the representation. In such a case, client will sign an engagement exclusively with the Local Counsel.

Impeccable Service


Nick Oberheiden is the absolute best federal litigation attorney. Nick gives you the immediate comfort of feeling 100% protected. He is polite, respectful— and extremely compelling. His legal strategy turned out to be brilliant.

– Marshall M.

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