![](https://whistleblowerlaws.com/wp-content/uploads/2023/05/dr-wollman-md-wb.jpg)
Phone: (202) 606-6723
E-mail: lwollman@gbblegal.com
Dr. Lisa Wollman, MD
Science & Medical Advisor
![](https://whistleblowerlaws.com/wp-content/uploads/2020/01/DSC_0042-2-750x900.jpg)
Phone: (404) 712-2358
E-mail: pzwier@gbblegal.com
Paul J. Zwier II is one of the nation’s most distinguished professors of advocacy and skills training, providing expert advice on trial strategy, jury analysis, and negotiation and mediation.
Paul J. Zwier II
Of Counsel
![](https://whistleblowerlaws.com/wp-content/uploads/2020/01/elizabeth_shofner.jpg)
Phone: (202) 800-3001
E-mail: lshofner@gbblegal.com
Elizabeth Shofner is Of Counsel at Guttman, Buschner and Brooks focusing on complex civil litigation, including false claims litigation, and corporate governance matters.
Elizabeth H. Shofner
Of Counsel
![](https://whistleblowerlaws.com/wp-content/uploads/2020/01/caroline_poplin.jpg)
Phone: 202-800-3001
E-mail: cpoplin@gbblegal.com
Dr. Caroline Poplin, a lawyer and medical doctor, provides legal and medical advice on cases involving off-label marketing of pharmaceuticals, and Medicare/Medicaid fraud.
Dr. Caroline Poplin
Of Counsel & Medical Director
![](https://whistleblowerlaws.com/wp-content/uploads/2016/05/gertner.jpg)
Phone: (202) 800-3001
E-mail: ngertner@gbblegal.com
Former Federal District Court Judge Nancy Gertner joined Guttman, Buschner & Brooks PLLC as Of Counsel in January of 2019, eight years after retiring from the bench.
Judge Nancy Gertner (Ret.)
Of Counsel
![](https://whistleblowerlaws.com/wp-content/uploads/2019/12/dan-guttman.jpg)
Phone: (202) 800-3001
Daniel Guttman focuses his law practice has on energy, environment, antitrust, whistleblower cases brought under the Federal False Claims act and employment law.
Dan Guttman
Of Counsel
![](https://whistleblowerlaws.com/wp-content/uploads/2016/02/JUSTIN-BROOKS.jpg)
Phone: (302) 327-9210
E-mail: jbrooks@gbblegal.com
Justin S. Brooks represents relators in qui tam litigation under the federal and state False Claims Acts and corporate clients in complex commercial and employment litigation.
Justin S. Brooks
Founding Partner
![](https://whistleblowerlaws.com/wp-content/uploads/2016/05/reuben_guttman.jpg)
Phone: (202) 800-3002
E-mail: rguttman@gbblegal.com
Mr. Guttman has litigated complex cases involving fraud, breach of fiduciary duty, environmental derelictions, antitrust, torts or statutory violations.
REUBEN A. GUTTMAN
Founding Partner
![](https://whistleblowerlaws.com/wp-content/uploads/2016/03/traci-buschner-2021jpg.jpg)
Phone: (202) 800-3003
E-mail: tbuschner@gbblegal.com
A former state prosecutor, Traci Buschner has spent nearly 30 years representing plaintiffs in complex litigation ranging from class actions to government contract fraud.