Practice Areas


Attorney O’Leary is a trained mediator and works with individuals, families and businesses to resolve disputes in a creative, cost-effective and expedient manner.

Collaborative Law

Attorney O’Leary is a member of the Collaborative Law Council, and as a collaborative lawyer, Attorney O’Leary works with similarly trained attorneys and other professionals to advance a client’s interests and avoid litigation.

Family Law

Divorce and other family law matters often require a blend of sensitivity and expert representation. Attorney O’Leary approaches each case keeping the best interests of the family at the forefront. He handles both contested and uncontested cases with professionalism and care offering practical solutions to challenging emotional and financial issues. Attorney O’Leary is experienced in the following areas of family law: divorce, paternity, child custody, child support, alimony, out of state relocation, legal separation, modification, contempt, prenuptial and post nuptial agreements.

Business Law

Attorney O’Leary has extensive experience in counseling small to medium sized businesses in the areas of corporate formation, governance and dissolution. He has also guided his clients in business transactions including asset purchases, asset sales, corporate real estate purchases, sales and leases.

Construction Law

General Contractors, subcontractors, suppliers and homeowners have benefited from Attorney O’Leary’s expertise in construction law. He provides strong representation on many facets of the building process for residential, commercial and public/municipal projects. Attorney O’Leary is well-versed in the Massachusetts and New Hampshire mechanics’ lien laws and public bond laws, and has successfully pursued his client’s claims against responsible parties on private and public projects. He has also represented homeowners in connection with defective workmanship or warranty claims.

Estate Planning

When clients are seeking to plan for their family’s future, they contact Attorney O’Leary who can guide them in choosing the appropriate estate plan to ensure that their concerns are addressed. As part of the estate planning process, Attorney O’Leary will discuss asset protection strategies and can create or update your will, power of attorney and health care declarations.

Plaintiffs' Personal Injury

Attorney O’Leary has extensive experience advocating for the rights of those who have been injured physically or psychologically through the negligence or wrongdoing of another individual, company, or other entity.