Family Law Miami
Hamilton O’Neill
- Est. 2022
- 50+ years experience
- Best Lawyers in America
About Hamilton O’Neill
Hamilton O'Neill is a Miami family law firm focused on high-net-worth and complex divorce matters throughout Miami-Dade, Palm Beach County, and South Florida. Kathryn DeVane Hamilton, who has practiced law since 1998 and founded The Hamilton Law Firm in 2008, co-founded Hamilton O'Neill with partner William J. O'Neill in 2022. The firm draws on more than 50 years of courtroom experience in asset division, business valuation, alimony, child custody and timesharing, prenuptial and postnuptial agreements, parental relocation, international custody under the Hague Convention, and disputes over foreign and multi-state assets. Its clients include business owners, executives, doctors, lawyers, professional athletes, media personalities, and public figures. Kathryn DeVane Hamilton holds an AV Preeminent rating from Martindale-Hubbell and has been recognized by Best Lawyers in America and Florida Super Lawyers, and the firm has been ranked among Best Law Firms in family law by U.S. News & World Report since 2020. The firm keeps a limited caseload, works with forensic accountants and valuation experts, and emphasizes confidentiality and discretion. Hamilton O'Neill is located at 150 SE 2nd Ave, Suite 908, Miami, FL 33131 and can be reached by phone at 305-371-3788.
Attorneys
- Kathryn DeVane Hamilton Founding Partner
- William J. O'Neill Partner
- Caitlin B. McNulty Attorney
- Anthony P. Sabatino Attorney
- Monica Gonzalez Attorney
Practice Areas
Awards & Recognition
- Best Lawyers in America
- Florida Super Lawyers
- AV Preeminent rating from Martindale-Hubbell
- Best Law Firms by U.S. News & World Report
- Florida Legal Elite
Frequently Asked Questions
What areas does Hamilton O'Neill practice in?
Hamilton O'Neill focuses exclusively on complex and high-net-worth family law matters, including divorce, asset division, alimony, child custody and timesharing, prenuptial and postnuptial agreements, and parental relocation. The firm also handles international custody issues under the Hague Convention and disputes involving foreign or multi-state assets.
Where is Hamilton O'Neill located and what areas does it serve?
Hamilton O'Neill is located at 150 SE 2nd Ave, Suite 908, Miami, FL 33131. The firm serves clients throughout Miami-Dade, Palm Beach County, and South Florida.
Who leads Hamilton O'Neill?
The firm was founded by Kathryn DeVane Hamilton, who has practiced law since 1998 and started The Hamilton Law Firm in 2008, and co-founded Hamilton O'Neill with partner William J. O'Neill in 2022. Kathryn DeVane Hamilton holds an AV Preeminent rating from Martindale-Hubbell and has been recognized by Best Lawyers in America and Florida Super Lawyers.
What kind of clients does Hamilton O'Neill represent?
Hamilton O'Neill represents high-net-worth individuals such as business owners, executives, doctors, lawyers, professional athletes, media personalities, and public figures. The firm emphasizes confidentiality and discretion while maintaining a limited caseload.