William F. "Bill" Sinnott
About William F. Sinnott
William F. Sinnott is a lawyer based in Boston, MA and has been recognized in The Best Lawyers in America® since 2023. William F. Sinnott is recognized in the following practice areas:
- Boston, Massachusetts
- Commercial Litigation
- Criminal Defense: White-Collar
- Health Care Law
Current Firm: Hinckley Allen LLP
Education: Suffolk University, J.D., graduated 1985
Location: Boston, MA
Nearby Lawyers
Katherine J. Michon was named by Best Lawyers as a 2015 “Lawyer of the Year” based on the high esteem in which she is held by her colleagues. She and her partners pioneered the firm’s nationally-ranked executive advocacy practice which focuses on the legal needs of executives, professionals and select businesses in sophisticated employment matters. Ms. Michon was also selected for the 2017 Edition of “Best Lawyers in America,” and in 2012 she was named a Top Woma...
Eric Apjohn is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Defendants and Product Liability Litigation - Defendants. Eric, who practices law in Boston, Massachusetts, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Eric is held by other top lawyers in the same geographic and legal practice area.
K. Adam Kunst is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. K. Adam, 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 K. Adam is held by other top lawyers in the same geographic and legal practice area.
Craig E. Marcus is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law. Craig E., who practices law in Boston, Massachusetts, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Craig E. is held by other top lawyers in the same geographic and legal practice area.
Michael R. Bertoncini is a principal in the Boston, Massachusetts, office of Jackson Lewis P.C. He is a co-leader of the Healthcare industry group and a member of the Higher Education group. A former Deputy General Counsel, Michael understands first-hand the competing demands and unique challenges in-house counsel must balance. Before joining Jackson Lewis, he was responsible for all labor and employment law matters for the largest fully integrated community care hospital system in New Englan...
Lynne F. Riley is a top attorney recognized by Best Lawyers in the practice area(s) of Bankruptcy and Creditor Debtor Rights / Insolvency and Reorganization Law and Litigation - Bankruptcy. Lynne F., who practices law in Boston, Massachusetts, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lynne F. is held by other top lawyers in the same geographic and legal practice area.
Mark J. Macenka is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Information Technology Law, Mergers and Acquisitions Law and Venture Capital Law. Mark J., 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 Mark J. is held by other top lawyers in the same geographic and legal practice area.
Janet Barringer is a Partner in Freeman Mathis & Gary's Boston office. She defends companies and individuals in a variety of matters ranging from employment claims to business disputes to professional liability matters and has tried over 20 cases to verdict. Ms. Barringer's peers have recognized her for inclusion in the Best Lawyers in America (Personal Injury Litigation: Defense) and as a Massachusetts Super Lawyer (Employment Litigation: Defense). In her Labor & Employment practice,...
James (Jim) Nicholas focuses his practice on federal and state labor and employment issues and litigation for life sciences, tech, private equity and portfolio companies. He is sought after to handle high-stakes matters relating to employee classification, wage and hour, leaves of absence, discrimination and harassment, wrongful termination and the enforcement of noncompetition and nondisclosure agreements, especially in Massachusetts and California. Read full biography: https://www.mwe.com/p...
Joanne E. Romanow handles high-conflict disputes in family law. Her practice encompasses all aspects of domestic relations and probate litigation, including divorce, custody, modification, child support, paternity, guardianship, and will contests. Joanne handles a variety of litigation involving asset division, complex business valuation, inheritances, custody disputes, domestic violence and non-traditional family structure. She has been appointed as a guardian ad litem by the Probate and Fam...
Explore and Learn
How to Sue for Defamation: Costs, Process and What to Expect
by Bryan Driscoll
Learn the legal standards, costs and steps involved when you sue for defamation, including the difference between libel and slander.
2026 Best Lawyers Awards in Canada: Marking 20 Years of Excellence
by Jamilla Tabbara
Honoring Canada’s most respected lawyers and spotlighting the next generation shaping the future of law.
The Family Law Loophole That Lets Sex Offenders Parent Kids
by Bryan Driscoll
Is the state's surrogacy framework putting children at risk?
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
Unenforceable HOA Rules: What Homeowners Can Do About Illegal HOA Actions
by Bryan Driscoll
Not every HOA rule is legal. Learn how to recognize and fight unenforceable HOA rules that overstep the law.
Holiday Pay Explained: Federal Rules and Employer Policies
by Bryan Driscoll
Understand how paid holidays work, when employers must follow their policies and when legal guidance may be necessary.
Reddit’s Lawsuit Could Change How Much AI Knows About You
by Justin Smulison
Big AI is battling for its future—your data’s at stake.
US Tariff Uncertainty Throws Canada Into Legal Purgatory
by Bryan Driscoll
The message is clear: There is no returning to pre-2025 normalcy.
The 2026 Best Lawyers Awards in Chile, Colombia and Puerto Rico
by Jamilla Tabbara
The region’s most highly regarded lawyers.