Gunnar Nilsson

Case Intake Analyst

Gunnar Nilsson is a Case Intake Analyst in the Minneapolis office. His responsibilities include communicating with potential clients regarding the Fair Credit Reporting Act (FCRA), assisting attorneys in researching and managing various individual cases, and providing clients regular updates on their cases.

Mr. Nilsson graduated with his B.S. in Criminal Justice from San Diego State University.

Theresa Petosa Headshot

Theresa Petosa


Theresa supports the Firm’s Consumer Protection practice on Defective Drug and Medical Device class actions and mass torts. She assists attorneys with case research, assessment and development, as well as settlement claims administration and processing.

Theresa comes to the Firm with significant case-investigation experience, including her work in criminal antitrust prosecution as a paralegal specialist with the United States Department of Justice for which she was a recipient of the Assistant Attorney General’s Award of Distinction. 

Theresa holds an M.A. in Conflict Studies from Arcadia University, awarded with Distinction and the university’s prize for intellectual inquiry for her graduate thesis. Theresa habla Espanol.

Jocelyn Sarvady Headshot

Jocelyn Sarvady

Legal Assistant/Case Intake Analyst

Jocelyn Sarvady serves as a Legal Assistant and one of Firm’s Case Intake Analyst. Ms. Sarvady has worked out of the Berger Montague’s growing Minneapolis, MN office since May 2018. Her day-to-day responsibilities include, managing and filing Fair Credit Reporting Act (FCRA) Individual cases, researching new FCRA cases based off of consumer leads, and updating clients on the status of their case.

Ms. Jocelyn graduated with her B.A. from St. Olaf College.

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Diane Werwinski


Diane Werwinski is a Senior Litigation Paralegal in the antitrust litigation practice area. She maintains case documents for complex litigation, researches and analyzes documents and communicates findings to team members and partners, assists in preparing and filing court documents via ECF in the U.S. Federal District Courts, conducts factual and legal research and organizes all aspects of trial preparation.

Ms. Werwinski graduated from LaSalle University with a B.S. in Business Administration and with honors from Community College of Philadelphia’s Paralegal Studies Program.

Mai Xiong Headshot

Mai Xiong


Mai Xiong is a Paralegal in our Minneapolis office. She works primarily on class action FCRA consumer litigation cases. 

Ms. Xiong graduated from Minneapolis Business College with a Legal Administration Certificate, and from the ABA-approved Paralegal Program at Inver Hills Community College with an A.S. Degree.

Elizabeth York Headshot

Elizabeth York


Elizabeth York has been with Berger Montague for over 15 years and serves as a Senior Litigation Paralegal and researcher for the Firm.

Ms. York assists attorneys in every phase of litigation from factual investigations through U.S. Supreme Court appeals. She specializes in document management in complex cases and has been the lead paralegal in tobacco, antitrust, defective product, and qui tam litigation. In addition, Ms. York has served as lead paralegal at several trials.

 Ms. York is a graduate of Temple University’s Fox School of Business and has received an M.S. in English education from St. Joseph’s University.

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