Representing Andover, Dracut, Lawrence & Tewksbury on Beacon Hill

Meet the Team

We’re Here to Help!

MaryRose Mazzola, Chief of Staff

MaryRose Mazzola is a Merrimack Valley native, growing up in Chelmsford. She graduated from Merrimack College in 2012. Her first job out of college was running Senator Finegold’s 2012 campaign, followed by working for him in the State House.

She can be reached at

Ross Peterson, Legislative Director & General Counsel

Ross graduated from Harvard Law School in 2017 and worked for Goodwin Procter upon graduation. While in law school, he served as a legal intern for United States Senator Ed Markey and State Senator Eric Lesser.

Ross manages Senator Finegold’s policy portfolio and committee assignments. He can be reached at

Chanel Rossi, Constituent Services Director

Chanel is in her last semester of law school at New England Law. Prior to the State House, she worked as a real estate paralegal.

Chanel handles all Lawrence constituent issues and Spanish media requests. She can be reached at

Tom Mahoney, Legislative Aide

Tom Mahoney graduated from Tufts University in May 2018 and joined the Senator Finegold’s campaign just three days later.

Tom runs the front desk of the State House office. He handles constituent legislative and budgetary requests, the Senator’s schedule, in-district events, and assists Chanel with constituent services. He can be reached at Thomas.

Marina Gil Acosta, District Director