# Hamilton O’Neill
> https://www.hamiltonfamilylaw.com
> Last Updated: 2026-07-18

Hamilton O’Neill is a Miami-based family & divorce law firm providing strategic representation in complex divorce and high-net-worth family law matters. The firm is known for discretion, detailed case strategy, and client-focused advocacy for individuals navigating high-stakes family law disputes in South Florida.

## Contact
- Phone: +1-305-371-3788
- Address: 150 SE 2nd Ave, Suite 908, Miami, FL 33131

## Locations
- Miami, FL - +1-305-371-3788
  Areas served: South Florida, Miami

## Practice Areas
- Family Law
- Divorce
- Child Custody
- Dissolution of Marriage
- Child Support
- Premarital and Postnuptial Agreements
- Paternity
- Division of Property and Assets
- Alimony
- Domestic Violence. Enforcement

## Attorneys
- Kathryn DeVane Hamilton: https://www.hamiltonfamilylaw.com/kathryn-devane-hamilton/
  Kathryn DeVane Hamilton has been practicing law in Florida and Washington states since 1998 and is the founding member of Hamilton O’Neill.
- William J. O: https://www.hamiltonfamilylaw.com/william-oneill/
  William O’Neill partnered with Kathryn DeVane Hamilton in 2022 to form Hamilton O’Neill, Bill has a distinguished professional career.
- Caitlin B. McNulty: https://www.hamiltonfamilylaw.com/caitlin-mcnulty/
  Caitlin B. McNulty is an Associate Attorney at Hamilton O'Neill PLLC. Her diverse experiences and commitment to client advocacy make her a valuable addition to our team.
- Anthony P. Sabatino: https://www.hamiltonfamilylaw.com/anthony-p-sabatino/
  With 25+ years of experience in Florida’s most sensitive and high net worth family matters, Anthony P. Sabatino brings strategic insight to Hamilton O’Neill.

## Key Pages
- Homepage: https://www.hamiltonfamilylaw.com/
- Blog: https://www.hamiltonfamilylaw.com/blog/
- Contact: https://www.hamiltonfamilylaw.com/contact-us/

## Social Profiles
- https://www.linkedin.com/company/hamilton-o-neill-pllc/
- https://www.yelp.com/biz/hamilton-o-neill-miami
- https://profiles.superlawyers.com/florida/miami/lawfirm/hamilton-oneill/b86fc085-30f1-45e1-bf8f-ebe4d7f8467d.html
- https://www.lawyers.com/miami/florida/hamilton-oneill-43083718-f/

## Reviews
- Rating: 5/5 based on 198 reviews

## Practice Area Details

### Miami High-Net-Worth Divorce Lawyer
https://www.hamiltonfamilylaw.com/
Hamilton O’Neill's goal is to secure the best possible outcome while minimizing stress and disruption. Contact our Miami high-net-worth divorce lawyers today.

### Florida’s Alimony Chameleon—Where Do You Stand? Part 1 Of 2
https://www.hamiltonfamilylaw.com/lectures/floridas-alimony-chameleon-where-do-you-stand-part-1-of-2/
Florida’s Alimony Chameleon—Where Do You Stand? Part 1 Of 2 By Kathryn DeVane Hamilton, Esquire and Parastoo Majd, Esquire Alimony. Did most of us think about this dreaded word on our wedding day? Or when you decided to take a back seat in your career so your spouse could take that big job (or agree...

### A-Rod’s Wife Ready to File for Divorce
https://www.hamiltonfamilylaw.com/lectures/a-rods-wife-ready-to-file-for-divorce/
A-Rod's Wife Ready to File for Divorce Published: July 7, 2008, 12:09 a.m. MDT By Associated Press MIAMI — Alex Rodriguez's wife will file for divorce today, according to media reports. Cynthia Rodriguez, who married the New York Yankees star in 2002, said the marriage is over because of the All-Sta...

### Kathryn DeVane Hamilton represents Conde Nast Chief’s Wife as She Files for Divorce in Dade, The Miami Herald
https://www.hamiltonfamilylaw.com/lectures/kathryn-devane-hamilton-represents-conde-nast-chiefs-wife-as-she-files-for-divorce-in-dade-the-miami-herald/
Miami Herald, The (FL) July 15, 2007 Section: Front Edition: First Page: 4A CONDÉ NAST CHIEF'S WIFE FILES FOR DIVORCE IN DADE JOAN FLEISCHMAN jfleischman@MiamiHerald.com Talk of Our Town Condé Nast Publications president and CEO Charles Townsend and wife Kerry Whitaker- Townsend have homes in New Yo...

### King of the Castle Faces Paternity Suit
https://www.hamiltonfamilylaw.com/lectures/king-of-the-castle-faces-paternity-suit/
King of the Castle Faces Paternity Suit The Miami Herald 6/10/2007 Texas billionaire Robert Allen Stanford, who purchased the 57 room Tyecliffe castle in Gables Estates from Wackenhut family in 2003 is now a defendant in a Miami Dade paternity suit. Louise Sage, 40, says Stanford, 57, is the daddy o...

### The Alimony Chameleon—Where Do You Stand? By Kathryn DeVane Hamilton
https://www.hamiltonfamilylaw.com/lectures/the-alimony-chameleon-where-do-you-stand-by-kathryn-devane-hamilton/
The Alimony Chameleon — Where Do You Stand? by Kathryn DeVane Hamilton Editor’s Note: Kathryn DeVane Hamilton, Haute Lawyer Network partner in South Florida and expert attorney in Family and Divorce Law talks about proposed changes to alimony laws pending in Florida’s legislature. Despite all of the...

### Miami Business Valuation in Divorce Lawyer
https://www.hamiltonfamilylaw.com/miami-business-valuation-in-divorce-lawyer/
Contact Hamilton O’Neil in Miami for help with business valuation in complex South Florida divorce cases.

### Miami Complex Divorce Lawyer
https://www.hamiltonfamilylaw.com/miami-complex-divorce-lawyer/
Contact Hamilton O’Neill for guidance and support from a Miami complex divorce lawyer experienced in the most challenging divorce cases in South Florida.

### Miami Alimony & Child Support Modification Lawyer
https://www.hamiltonfamilylaw.com/miami-alimony-child-support-modification-lawyer/
The Miami alimony & child support modification lawyers at Hamilton O’Neill provide high-quality legal advice and representation in the most complex matters.

### Miami Child Support Lawyer
https://www.hamiltonfamilylaw.com/miami-child-support-lawyer/
Contact Hamilton O’Neill today to speak with an experienced and dedicated Miami child support lawyer, we can help.

### Miami Alimony Lawyer
https://www.hamiltonfamilylaw.com/miami-alimony-lawyer/
The Miami alimony lawyers at Hamilton O’Neill are aggressive, skilled, and experienced in handling the most complex alimony cases. Contact our firm today.

### Miami Child Custody Lawyer
https://www.hamiltonfamilylaw.com/miami-child-custody-lawyer/
Hamilton O’Neill’s experienced and knowledgeable Miami child custody lawyers will assist you in developing a Parenting Plan and timesharing schedule.

### Miami Divorce Lawyer
https://www.hamiltonfamilylaw.com/miami-divorce-lawyer/
Contact Hamilton O’Neill today to speak with a skilled and capable Miami divorce lawyer committed to discretion, professionalism, and matchless client service.

### Miami Divorce Mediation Lawyer
https://www.hamiltonfamilylaw.com/miami-divorce-mediation-lawyer/
The Miami divorce mediation lawyers at Hamilton O’Neill are committed to achieving outcomes that serve the client’s best interests in or out of court

### Miami Divorce Tax Lawyer
https://www.hamiltonfamilylaw.com/miami-divorce-tax-lawyer/
The Miami divorce tax lawyers at Hamilton O’Neill offer expertise in complex divorce matters with a focus on meeting the unique needs and goals of every client.

### Miami Family Lawyer
https://www.hamiltonfamilylaw.com/miami-family-lawyer/
Contact the Miami family lawyers at Hamilton O’Neill for skilled and dedicated representation with the utmost commitment to client service and confidentiality.

### Miami Forensic Accounting Divorce Lawyer
https://www.hamiltonfamilylaw.com/miami-forensic-accounting-divorce-lawyer/
The Miami forensic accounting divorce lawyers at Hamilton O’Neill are skilled and experienced when it comes to working with experts and consultants.

### Miami High Net Worth Divorce Lawyer
https://www.hamiltonfamilylaw.com/miami-high-net-worth-divorce-lawyer/
Given the intricacies involved in high-net-worth divorces, it is essential to work with Hamilton O’Neill who have experience handling these complex cases.

### Miami International Child Custody & Hague Convention Lawyer
https://www.hamiltonfamilylaw.com/miami-international-child-custody-hague-convention-lawyer/
Contact Hamilton O’Neill to consult with an experienced and dedicated Miami international child custody & Hague Convention lawyer.

### Miami Multi-State Assets Divorce Lawyer
https://www.hamiltonfamilylaw.com/miami-multi-state-assets-divorce-lawyer/
Hamilton O’Neill are highly experienced in handling the most complex issues in family law, including dealing with multi-state assets in Miami divorce cases.

### Miami Paternity Lawyer
https://www.hamiltonfamilylaw.com/miami-paternity-lawyer/
For assistance seeking or challenging parentage in South Florida, contact Hamilton O’Neill to consult with a skilled and experienced Miami paternity lawyer.

### Miami Same-Sex Divorce Lawyer
https://www.hamiltonfamilylaw.com/miami-same-sex-divorce-lawyer/
Contact Hamilton O’Neil for advocacy and support from a team of skilled Miami same-sex divorce lawyers dedicated to client service and excellence.

## Recent Articles

### Tax Mistakes to Avoid in Your Miami Divorce
https://www.hamiltonfamilylaw.com/tax-mistakes-to-avoid-in-your-miami-divorce/ (2026-07-16)
Contact Hamilton O’Neill for Professional Guidance

### Strengthening Your Case for Alimony in Florida
https://www.hamiltonfamilylaw.com/strengthening-your-case-for-alimony-in-florida/ (2026-07-15)
Too many men and women overlook whether to request alimony. Contact Hamilton O’Neill to speak with our Miami alimony lawyer.

### Frequently Asked Questions about Stepparent Adoption for Same-Sex Couples
https://www.hamiltonfamilylaw.com/faq-about-stepparent-adoption-for-same-sex-couples/ (2026-07-09)
To learn more, please contact Hamilton O’Neill to speak with a Miami family lawyer. Our firm can discuss the steps involved in step-parent adoption, and we can handle the court approval process.

### What Is the Divorce Rate? (And Other Divorce Facts)
https://www.hamiltonfamilylaw.com/what-is-the-divorce-rate-and-other-divorce-facts/ (2026-07-08)
Contact Hamilton O’Neill to Discuss Divorce

### Divorcing a Spouse Who is Out of the Country
https://www.hamiltonfamilylaw.com/divorcing-a-spouse-who-is-out-of-the-country/ (2026-06-10)
Contact Hamilton O’Neill to speak with a Miami complex divorce lawyer.

### If Florida is a No-Fault State, Why Allege Adultery in a Miami Divorce?
https://www.hamiltonfamilylaw.com/if-florida-is-a-no-fault-state-why-allege-adultery-in-a-miami-divorce/ (2026-06-09)
The attorneys at Hamilton O’Neill have helped high-profile individuals navigate divorce in Miami for several decades.

### Broken Promises: Can You Sue for Breach of a Marriage Contract?
https://www.hamiltonfamilylaw.com/broken-promises-can-you-sue-for-breach-of-a-marriage-contract/ (2026-06-03)
Contact Hamilton O’Neill to speak with a Miami family law attorney about any issue involving marriage, divorce, or paternity. Our consultations are private and without any risk to you.

### These 3 Assets Are Hard to Divide in a Miami Divorce
https://www.hamiltonfamilylaw.com/these-3-assets-are-hard-to-divide-in-a-miami-divorce/ (2026-06-02)
Call Hamilton O’Neill for Assistance with Your Miami Divorce

### What is Family Law Arbitration in Florida?
https://www.hamiltonfamilylaw.com/what-is-family-law-arbitration-in-florida/ (2026-05-27)
Contact Hamilton O’Neill to Discuss Alternative Dispute Resolution

### How is Executive Compensation Handled in a Miami Divorce?
https://www.hamiltonfamilylaw.com/how-is-executive-compensation-handled-in-a-miami-divorce/ (2026-05-26)
Call Hamilton O’Neill to speak personally with a Miami asset division lawyer. We have the experience and discretion needed to provide effective advocacy.

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