Jonathan J. "Jon" Margolis

John DeTore serves as Administrative Chairman of Rubin and Rudman’s Executive Committee and leader of the Energy Practice Group. John’s practice focuses on representing large energy companies before regulatory agencies and courts throughout New England and in New York. His representations include more than twenty major energy projects involving billions of dollars in Massachusetts, Connecticut and New York, including eleven cases before the Massachusetts Supreme Judicial Court. Jo...

Michael Goldberg’s clients look to him for advice on difficult and complex restructuring issues, where he is known for his creative approaches to the solution of financial problems. Mike specializes in the areas of business bankruptcy, financial restructuring and business transactions as well as commercial real estate transactions. In his over 25 years of practice, Mike has represented a broad spectrum of clients in insolvency matters, including debtors, creditors’ committees, tru...

Jeff Francis is an experienced trial lawyer who has successfully represented clients in complex commercial and intellectual property litigation matters throughout the U.S. His practice includes litigation involving patent, trademark, copyright, and trade secret disputes; technology development and/or licensing; large loss fire investigations, commercial property and business interruption insurance; and commercial disparagement, defamation and harassment. One focus of Jeff’s practice is ...

Mark J. Warner is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law and Litigation - Trusts and Estates. Mark J., who practices law in Boston, Massachusetts, has been recognized since 2006. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mark J. is held by other top lawyers in the same geographic and legal practice area.

Rebecca G. Capozzi is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Defendants. Rebecca G., who practices law in Waltham, Massachusetts, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Rebecca G. is held by other top lawyers in the same geographic and legal practice area.

Daniel Halston focuses on securities litigation, general commercial litigation and administrative law disputes. He has represented numerous public and private high technology, life sciences, and financial services companies and their officers and directors in a wide range of complex litigation matters, including securities fraud class actions, derivative litigation, mergers and acquisitions disputes, false claims act actions, breach of fiduciary duty claims, investment advisor claims, closely...

Don J.J. Cordell is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Don J.J., who practices law in Boston, Massachusetts, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Don J.J. is held by other top lawyers in the same geographic and legal practice area.

Paul G. Lannon Jr. is a partner in Holland & Knight's Litigation Section and a member of the firm's Labor, Employment and Benefits Group and Energy Team. He is co-chair of the Education Team and chair of the Non-Competition, Trade Secrets and Employee Defection Team. Mr. Lannon represents public and private companies in complex civil litigation, counsels businesses on asset protection and workplace issues, and advocates for management in employment disputes. Mr. Lannon also serves as the ...

Keith Barnett is an experienced lawyer who has developed a successful practice representing clients in all aspects of commercial real estate, including real estate finance, development, acquisitions, sales and leasing. During the course of his career, Mr. Barnett has represented local, national and international clients, including some of the world’s largest publicly traded retailers, investors, developers, pension fund advisors and life insurance companies, among others, in various rea...

Minta E. Kay is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Minta E., who practices law in Boston, Massachusetts, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Minta E. is held by other top lawyers in the same geographic and legal practice area.