Haslam & Thorne, APC

Family Attorneys in Ontario, California

Haslam & Thorne, APC

3491 Concours Street
Suite 200

Ontario, California 91764

Phone(909) 983-4777
Fax (909) 581-6761

Website www.haslamperrilawfirm.com
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Law Firm Overview

Haslam & Thorne, LLP is a family law firm located in Ontario, California and serving clients throughout the region, including San Bernardino and Riverside Counties. Practice areas encompass divorce and legal separation, child custody and visitation, child and spousal support, parental relocation, modifications, paternity, stepparent rights and adoption, domestic partnerships, prenuptial and postnuptial agreements, property settlement, real estate issues and business valuations, domestic violence, and mediation.

Attorneys Donald Haslam and Brian Thorne have more than 40 years of experience and are California board-certified Family Law Specialists. Each lawyer has experience in litigation, mediation and the many important nuances of California courts. The firm’s team of professionals offers the research, diligence, and communication required to resolve even the most complex divorce and family law matters.

Haslam & Thorne, LLP helps individuals and families navigate the family law system and provide them the information needed to make the best decisions. They advocate on clients’ behalf, protecting their rights and best interests, and pursue finding the best resolutions.

Languages: English, Portuguese, Spanish

Areas of Law

Additional Areas of Law: Domestic Partnerships; Grandparents' Rights; Guardianship; High Asset Divorce; Annulment; Military Divorce & Child Custody; Modifications; Move Aways & Parental Relocation; Postnuptial Agreements; Property & Debt Division; Property Settlements; Stepparents Rights / Stepparent Adoption / Contract Adoption; Charitable Giving; Financial Power of Attorney; Medical Power of Attorney; Advance Health Care Directives; Conservatorship; Business Succession Planning; Estate Planning for Non-traditional Families.


Mr. Donald Glen Haslam
Collaborative Law, Divorce, Family Law, Juvenile Crime

Mr. Brian George Thorne
Alimony, Child Custody and Visitation, Child Support, Divorce, Domestic Violence


  • The State Bar of California
  • San Bernardino Bar Association
  • Association of Certified Family Law Specialists
  • Western San Bernardino County Bar Association

More Information on Haslam & Thorne, APC

Child Support
Military Divorce
Divorce Mediation

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