Meet Our Team

Renzo Bosoni, Esq.

First Legal, P.A. – Founder

954-998-1488 |

Renzo Bosoni has experience working in real estate and business law. He has represented hundreds of homeowners helping them save their homes from foreclosure by negotiating with lenders to reduce borrowers monthly mortgage payments.

As part of his practice, Mr. Bosoni represents local and international investors seeking to acquire real estate in South Florida. He addresses clouds on title, negotiates lien payoffs and homeowners association debts, and handles all other legal due diligence necessary to protect his clients’ investments.

He works with small businesses by helping them establish efficient structures tailored to the business goals of the client. He provides ongoing legal advice and support related to business operations.


  • American University, Washington College of Law
    Washington, DC: Juris Doctor
  • Florida International University
    Miami, FL: Masters in Communication
  • Boston University
    Boston, MA: Bachelor of Arts with major in Philosophy


  • Florida Bar
  • US District Court for the Southern District of Florida

Simona Burshteyn, Esq.

First Legal, P.A. – Attorney

954-998-1488 |

Simona Burshteyn obtained her B.A., with high honors from Florida International University, and her J.D. and from Nova Southeastern University. She has worked representing mortgage lenders in foreclosure proceedings, handled residential and commercial real estate closings, representing landlords and tenants in numerous evictions and security deposit disputes, represented debtors in Chapter 7 and 13 bankruptcy proceedings, and has litigated cases involving real property and contractual disputes.

She currently focuses her practice areas in real estate law, bankruptcy and general civil and commercial litigation.

In her free time, Simona enjoys volunteering with the South Florida Audubon Society.


  • Nova Southeastern University School of Law Ft. Lauderdale, FL: Juris Doctor
  • Florida International University Miami, FL; Bachelor of Arts


  • Florida Bar
  • New Jersey Bar
  • District Court for the Southern and Middle District of Florida

Mark Mastrarrigo, Esq.

First Legal, P.A. – Attorney

(954) 998-1488 |

Mark Mastrarrigo practices in the areas of estate planning, probate, guardianship, real estate and general civil litigation and criminal defense. He was admitted to the Florida Bar in 1995, the United States District Court for the Southern District of Florida in 2014, and has been a resident of South Florida for nearly thirty years. Mark holds a Bachelor’s degree in Journalism from the University of Florida and a Juris Doctor from St. Thomas University School of Law.

He has helped those clients who have the need for estate plans with very little or no assets but important goals to be accomplished for their loved ones and estate plans for clients with large financial estates with the need to protect their assets and plan for their loved ones financial care in the future. Mark has assisted those clients with the need for navigating through the probate and guardianship process at a time of loss and need with the utmost of professionalism and compassion. He has also represented individual clients in various types of civil, commercial, and criminal actions, including probate litigation, guardianship litigation, foreclosure defense, corporate litigation, and general civil actions both as plaintiff and defendant.

Mark has had a widely diverse and successful career representing clients that range from the largest corporate entities in the world to the most humble of individual clients with equally important legal issues. He has represented banks and mortgage servicers in title disputes, lien enforcement actions, quiet title actions, safe harbor disputes, declaratory judgment actions, and contested foreclosures.

Mark has tried cases in every judicial circuit in the State of Florida, litigated in more than forty Florida counties before more than one hundred circuit court judges, county court judges, and magistrates. He has also managed a law firm with more than one hundred attorneys and two hundred fifty employees.

Mark has lectured on legal ethics and substantive areas of the law at continuing legal education programs sponsored by voluntary bar associations and private law firms, as well as seminars on estate planning, from the simple estate up to the most complex with asset protection needs and elder law issues.


  • St. Thomas University School of Law: Juris Doctor
  • University of Florida: Bachelor’s in Journalism


  • Florida Bar
  • US District Court for the Southern District of Florida
Call First Legal (954) 998-1488 to schedule a free consultation with an experienced Attorney.
We serve all of Miami-Dade, Broward and Palm Beach counties in Florida.