Ontario, California — Prenuptial Agreement Attorneys

Protect Your Interests with a
Prenuptial Agreement in California

You are not planning for a divorce — but California community property law can significantly affect your financial future. At Haslam Perri Law Firm, our board-certified attorneys draft enforceable prenuptial and postnuptial agreements that protect your assets, your business, and your peace of mind.

Agreements That Hold Up in Court
We know what courts will and will not enforce
Board-Certified Specialists
Top 1% of CA family law attorneys
Both Prenup and Postnup
Before and after marriage protection
90-Day Lead Time Recommended
Protecting your agreement from challenge

Prenuptial Agreements — Ontario CA

Protecting Your Financial Future Before You Say 'I Do'

If you are considering remarriage, or going into a marriage with significant financial holdings, it is important to consider drafting a prenuptial agreement. California is a community property state — any personal property and financial assets you acquire over the course of your marriage must be divided equally in the event of a divorce settlement.

A prenuptial agreement is an important legal document used to protect the personal property you owned prior to the date of marriage — including real estate, business interests, investments, and other assets. At Haslam Perri Law Firm, our attorneys know which terms are typically enforceable and which are likely to be considered non-binding under California law.

We give you the confidence that your prenuptial agreement will hold up in court — protecting your interests and those of your future spouse with a fair, transparent, and legally sound document. We also handle postnuptial agreements for couples already married who wish to clarify their financial arrangements.

  • Prenuptial agreements drafted and reviewed
  • Postnuptial agreements for already-married couples
  • High-asset and business protection expertise
  • Both parties represented by independent counsel
  • Board-certified — AV Rated by Martindale-Hubbell
90+
Days Lead Time Recommended
50%
CA Divorce Rate
40+
Years Experience
1%
Board-Certified

What a Prenup Can Protect

  • Pre-marital property and savings
  • Business interests and ownership
  • Real estate and investment portfolios
  • Inheritance rights for prior children
  • Spousal support terms and limits

Legal Requirements

What Makes a California Prenuptial Agreement Legally Binding?

California has strict requirements for enforceable prenuptial agreements under the Uniform Premarital Agreement Act. Our attorneys ensure every requirement is met — giving you full confidence your agreement will hold up in court.

90-Day Lead Time Recommended
Our firm recommends drafting the agreement at least 90 days before the wedding. California law requires at least 7 days for review — but earlier drafting prevents any claim of duress or time pressure that could invalidate the agreement.
Independent Counsel for Each Party
Each party must have their own independent legal representation, or must waive that right in writing. An agreement signed without independent counsel is among the most common grounds for invalidation in California courts.
Full Financial Disclosure
Both parties must openly and fully disclose all financial assets, property holdings, and debts. Any omission or misrepresentation — even unintentional — can provide grounds to challenge the entire agreement.
Agreement Must Not Be Unconscionable
California courts will not enforce prenuptial agreements that are so one-sided as to be unconscionable — leaving one spouse in an extreme financial disadvantage. Balance and fairness are essential to enforceability.
Written and Signed by Both Parties
The agreement must be in writing and signed voluntarily by both parties. Oral prenuptial agreements are not enforceable in California under any circumstances.
Cannot Include Prohibited Terms
Certain provisions are prohibited — including terms that eliminate reasonable spousal support, encourage divorce, regulate non-financial personal matters, or waive child support rights. We know exactly what courts will and will not enforce.

Prenuptial and Postnuptial Agreements

Both Before and After Marriage — We Handle Both

Whether you are preparing for your first marriage, entering a second marriage, or already married and wanting to clarify your financial arrangements, Haslam Perri Law Firm provides expert representation for both prenuptial and postnuptial agreements throughout San Bernardino County.

Prenuptial Agreement Drafting
Our attorneys draft comprehensive prenuptial agreements tailored to your specific financial situation — protecting separate property, business interests, and pre-marital assets with provisions courts will enforce.
Learn More →
Prenuptial Agreement Review
If your fiancé has presented you with a prenuptial agreement, do not sign without having it independently reviewed. Our attorneys identify unfair, unenforceable, or disadvantageous provisions before you commit.
Learn More →
Postnuptial Agreement Drafting
Already married and wanting to protect newly acquired assets, a business, or clarify financial arrangements? We draft legally enforceable postnuptial agreements for couples throughout the Inland Empire.
Learn More →
Business Owner Protection
Protecting a business from becoming community property is one of the most common and important uses of prenuptial agreements. We structure provisions that protect your business while remaining fair and enforceable.
Learn More →
Protecting Children from Prior Relationships
For parents entering a second marriage, prenuptial agreements can protect inheritance rights and financial provisions for children from prior relationships — ensuring your wishes are honored.
Learn More →
Challenging or Defending a Prenup
If a prenuptial agreement is being used against you in a divorce — or you believe the agreement you signed was not valid — our attorneys represent you in challenging or defending prenuptial agreements in court.
Learn More →

Who Should Consider a Prenuptial Agreement

It Makes Sense to Protect Your Financial Interests

You are not planning for a divorce — but California’s community property laws mean that what you build during your marriage belongs equally to both spouses. A prenuptial agreement is not a sign of distrust — it is a sign of financial maturity and respect for both parties’ futures.

Our attorneys are ready to answer all of your questions about prenuptial agreements. We know which terms are typically acceptable and which are likely to be considered non-binding — and we will draft an agreement you can rely on.

  • Entering marriage with significant assets or savings
  • Owning a business or professional practice
  • Getting remarried — especially with children from prior relationships
  • Receiving or expecting a significant inheritance
  • Significant income disparity between partners
  • One partner has significant existing debts

Client Testimonials

What Our Prenuptial Agreement Clients Say

★★★★★

"Donald Haslam drafted our prenuptial agreement with complete professionalism. He made sure both of us understood every provision and that the agreement was fair and enforceable. We entered our marriage with total confidence."

Steven and Michelle K.
Prenuptial Agreement Clients — Ontario, CA
★★★★★

"I had significant business assets going into my second marriage. Haslam Perri drafted a prenuptial agreement that protected my company while being completely fair to my fiancée. Expert work throughout."

James T.
Business Owner Prenuptial — San Bernardino County
★★★★★

"My fiancé presented me with a prenup and I was uncomfortable signing without advice. Haslam Perri reviewed it, identified several unfair terms, and negotiated better provisions on my behalf. Invaluable service."

Karen M.
Prenuptial Review Client — Rancho Cucamonga, CA

Frequently Asked Questions

Prenuptial Agreements — Questions Answered

Clear answers to the most common prenuptial agreement questions in San Bernardino County. Contact our Ontario offices to learn more about prenuptial and postnuptial agreements.

A prenuptial agreement — also called a premarital agreement — is a legally binding contract signed before marriage that determines how assets and debts will be handled if the marriage ends. In California, a prenuptial agreement can address the characterization of separate and community property, spousal support rights and limitations, property division in the event of divorce or death, protection of business interests, inheritance rights for children from previous relationships, and financial rights and responsibilities during the marriage. At Haslam Perri Law Firm, our board-certified attorneys draft enforceable prenuptial agreements that protect both parties’ interests.

California has strict requirements for enforceable prenuptial agreements under the Uniform Premarital Agreement Act. The agreement must be in writing and signed by both parties. Each party must have their own independent legal counsel, or must waive that right in writing. The agreement must be signed at least seven days after the final version is presented to the other party. Both parties must fully and accurately disclose all assets and debts. The terms must not be unconscionable. Our attorneys ensure every requirement is met — giving you confidence your agreement will hold up in court.

California law requires that each party have at least seven days to review the final version of the prenuptial agreement before signing. However, our firm recommends drafting the agreement at least 90 days before the wedding. This timeline ensures neither party can later claim they signed under duress or without adequate time to review — one of the most common grounds for challenging a prenuptial agreement in court. The earlier you begin the process, the stronger your agreement will be.

California law prohibits certain provisions in prenuptial agreements. You cannot use a prenuptial agreement to eliminate a spouse’s right to receive reasonable spousal support if doing so would leave them eligible for public assistance. You cannot include provisions that encourage divorce, regulate personal matters such as household duties, waive child support rights, or include terms that violate any law or public policy. Our attorneys know exactly which provisions will hold up in court and which will not — protecting you from agreements that could be invalidated entirely.

A postnuptial agreement is a legally binding contract entered into by spouses after they are already married. It serves the same general purpose as a prenuptial agreement — addressing property rights, spousal support, and asset division in the event of divorce or death. Postnuptial agreements are often sought after a significant change in financial circumstances, such as starting a business, receiving an inheritance, or resolving marital difficulties. California law applies similar enforceability requirements to postnuptial agreements as to prenuptial agreements.

Yes. A prenuptial agreement can be challenged in California court if it was not signed voluntarily, if one party did not have independent legal counsel and did not waive that right in writing, if the final version was presented less than seven days before signing, if there was incomplete or fraudulent financial disclosure, or if specific terms are unconscionable. This is why having experienced legal representation — both when drafting and when reviewing — is essential for both parties. At Haslam Perri Law Firm, we draft agreements built to withstand court scrutiny.

Contact Our Ontario Offices — Free Consultation

Contact Haslam Perri Law Firm to learn more about prenuptial and postnuptial agreements. We give you the confidence that your agreement will protect your interests — and hold up in court.