Our Team

Our Team

A Family Law Firm in Irvine, California

Rosen & Rosen, LLP is a family-owned, family law firm located in Irvine, California and serving all of Orange County. For our team of attorneys, it’s all about “Our Family Helping Yours.”

Our three attorneys Bonnie, Daniel, Hayley—all with the last name of Rosen—are ready to promptly assist you through all aspects of your case. Unlike some firms, when working with Rosen & Rosen, you have the added benefit of a strong team approach to help you navigate the difficult and emotional process of divorce. We also provide counsel on issues of child custody, child support, spousal support, property division, modifications of orders, post-marital agreements, domestic violence actions, and others.

Bonnie and Hayley have extensive experience in all aspects of family law and Dan brings deep experience in financial matters, estate issues, and business law—a combination of experience that our clients find invaluable. This specific experience equips Rosen & Rosen to effectively guide our clients through complex financial issues that often arise in family law cases including business valuations, cash flow analysis, and asset division.

Our Team


Bonnie Rosen

BONNIE ROSEN, partner, is a Certified Family Law Specialist licensed by the California Board of Legal Specialization. Bonnie provides aggressive trial advocacy when legal issues cannot be resolved through negotiation and she has also been named as a Super Lawyer of Southern California. She is a founding board member of the Orange County Chapter of the Association of Certified Family Law Specialists and has successfully argued to the California State Court of Appeals.

  • 1972 Bachelor of Arts
    University of California

  • 1975 Juris Doctor Degree
    Loyola University Los Angeles

  • 1975 California Bar Admission

  • 1976 US District Court


Dan Rosen

DAN ROSEN, partner, is a business and estate planning lawyer and has practiced law for over 45 years. As a result, his financial acumen is called upon whenever a case involves complex financial issues or business ownership. Dan provides direction with estate plans and the structure of their businesses due to their marital dissolution.

  • 1969 Bachelor of Science
    Rollins College

  • 1973 Juris Doctor Degree
    University of Miami

  • 1973 Florida Bar Admission

  • 1975 California Bar Admission

  • 1991 US District Court


Hayley Rosen
Senior Attorney

HAYLEY ROSEN, senior attorney,  is a Certified Family Law Specialist licensed by the California Board of Legal Specialization.  She  focuses on the representation of family law clients who face divorce issues. Backed by sophisticated legal training and experience, Hayley has a keen understanding of the difficulties spouses and children face while going through a divorce. She effectively and promptly addresses the needs of clients throughout the duration of their case with expertise and compassion.

  • 2007 Bachelor of Arts
    Emory University

  • 2010 Juris Doctor Degree
    University of San Diego

  • 2010 California Bar Admission

  • 2011 US District Court

LISA THEOFANOS is our Office Manager and Senior Legal Assistant and she is also a part of the Rosen & Rosen “family.” Lisa started her career working with Bonnie Rosen in 1989 when she was completing her Paralegal Certificate at the Cerritos College, ABA approved program. The focus of Lisa’s work has been in family law and she is also a Notary Public and a member of the National Notary Association.


If you or anyone you know are looking for a family law firm in Orange County, please contact us!


Where We Treat You Like Family.