Gettysburg College (B.A., 1990)
Massachusetts School of Law (J.D., 1995)

Bar Admissions: 
Massachusetts (1996)
New Hampshire (1996)
U.S. District Court, D. Mass. (1996)
U.S. District Court of Appeals, 1st Circuit (1996)
U.S. District Court, D. N.H. (1996)
Areas of Expertise:
Family Law
Business Law
Construction Law
Real Estate
Plaintiff’s Personal Injury
Estate Planning

Contact Information:
Phone 978.689.0800 ext 14
Fax 978.794.0890

About Sean P. O’Leary

Attorney O’Leary’s practice consists primarily of family law, business law, construction law, real estate, plaintiff’s personal injury and estate planning. He is an experienced litigator, trained mediator and collaborative law professional.  He represents clients in the Massachusetts and New Hampshire state courts, family courts and federal courts.

Attorney O’Leary offers clients an array of options to resolve the issues facing them. Although he is an experienced litigator, Attorney O’Leary is aware of the emotional and financial toll that litigation can have on families and businesses and knows that clients can often be better served through conflict resolution efforts.  In addition to his considerable experience before the bench, Attorney O’Leary is a collaboratively trained lawyer and is a member of the Massachusetts Collaborative Law Council (MCLC), International Academy of Collaborative Professionals (IACP) and Massachusetts Council on Family Mediation (MCFM).  As a collaborative lawyer, Attorney O’Leary works with similarly trained attorneys and other allied professionals to understand each client’s interests and needs so that realistic options can be explored in an effort to reach global resolution and avoid litigation.  As a mediator, Attorney O’Leary facilitates productive dialogue between parties as they discuss ways to craft realistic solutions to difficult problems. Attorney O’Leary also volunteers his time as a conciliator for the Massachusetts Superior Court and Massachusetts Probate and Family Court.  

Attorney O’Leary is a guardian ad litem and has served as a faculty member for the Category F guardian ad litem training for Massachusetts Continuing Legal Education (MCLE).  He has also served as a faculty member for introductory training offered by Massachusetts Collaborative Law Council.  Attorney O’Leary participated and was featured in a collaborative law training DVD series, and was a presenter at the Real Estate Section of the Connecticut Bar Association on the uses of collaborative law in civil and real estate disputes.

Professional Associations

Massachusetts Council on Family Mediation is an association of family mediators who provide mediation services to clients seeking to solve disputes    To learn more,  go to www.mcfm.org.

Massachusetts Collaborative Law Council is a non-profit organization of lawyers and other professionals committed to helping their clients resolve their legal issues out of court.  To learn more, go to www.massclc.org.

International Academy of Collaborative Professionals is an international community of legal, mental health and financial professionals working in concert to create client-centered processes for resolving conflict. To learn more, go to www.collaborativepractice.org.

Essex County Bar Association

New Hampshire Bar Association