Drafting and Negotiating a Prenup With Separate Counsel

What a Premarital Agreement Can Cover Under California Law

A premarital agreement is, in the Family Code's words, "an agreement between prospective spouses made in contemplation of marriage and to be effective upon marriage" (Family Code section 1610). It must be in writing and signed by both parties, and it is enforceable without consideration, meaning neither side has to give the other anything in exchange for signing (section 1611). It takes effect on the wedding day, not before (section 1613). California's default property rules for spouses can be changed this way: section 1500 provides that the property rights prescribed by statute "may be altered by a premarital agreement or other marital property agreement."

Family Code section 1612(a) lists what the agreement may address:

1. Property rights, whenever acquired. "The rights and obligations of each of the parties in any of the property of either or both of them whenever and wherever acquired or located." This reaches property owned before the wedding and property that comes later, in California or elsewhere. "Property" is defined broadly to include present and future interests and "income and earnings" (section 1610(b)).
2. Management and control. The right to buy, sell, use, transfer, lease, mortgage, encumber, dispose of, or otherwise manage and control property. This is where an agreement can say who decides what about a home, an account or a business interest during the marriage.
3. What happens at the end. "The disposition of property upon separation, marital dissolution, death, or the occurrence or nonoccurrence of any other event." Divorce is one event; death is another; the agreement can also name other triggering events.
4. Estate documents. "The making of a will, trust, or other arrangement to carry out the provisions of the agreement." The agreement can require each spouse to put matching documents in place.
5. Life insurance. "The ownership rights in and disposition of the death benefit from a life insurance policy."
6. Governing law. "The choice of law governing the construction of the agreement." Couples who expect to move, or who own property in another state, often think about this clause. The guidance on this site covers California law only, so how another state would read an agreement is outside what it addresses.
7. Other matters. "Any other matter, including their personal rights and obligations, not in violation of public policy or a statute imposing a criminal penalty."

Two limits sit inside the same section. First, "the right of a child to support may not be adversely affected by a premarital agreement" (section 1612(b)). Second, spousal support has its own rule. Under section 1612(c), any provision regarding spousal support, including a waiver of it, is not enforceable if the party against whom it is enforced was not represented by independent counsel when the agreement was signed, or if the provision is unconscionable at the time of enforcement. Representation alone does not rescue an otherwise unenforceable support provision. Spousal support is therefore the one subject where separate counsel is written directly into the enforceability test.

When a Prenup Is Unenforceable in California

Family Code section 1615(a) sets out two routes by which the person resisting an agreement can show it is not enforceable. The burden is on that person to prove it.

Route one: the agreement was not signed voluntarily. Section 1615(a)(1) asks whether "that party did not execute the agreement voluntarily." Voluntariness is not left to impression. Section 1615(c) provides that an agreement is deemed not voluntary unless the court finds, in writing or on the record, all of the following:

• the party was represented by independent legal counsel when signing, or, after being advised to seek counsel, expressly waived representation in a separate writing;
• the party had the required seven calendar days with the final agreement before signing (explained in the next section);
• if unrepresented, the party was fully informed of the terms and basic effect of the agreement and the rights being given up, in a language they were proficient in, with that explanation put in writing and delivered before signing, and the party signed a document saying they received it and who provided it;
• the agreement and those writings were not signed under duress, fraud or undue influence, and neither party lacked capacity; and
• any other factors the court deems relevant.

Put plainly, a court looks at pressure, timing, understanding and capacity, and it wants those things to appear in the record, not merely be assumed.

Route two: unconscionability combined with missing disclosure. Section 1615(a)(2) applies when the agreement "was unconscionable when it was executed" and, before signing, all three of these were true of the challenging party: they were "not provided a fair, reasonable, and full disclosure of the property or financial obligations of the other party"; they did not voluntarily and expressly waive, in writing, any further disclosure; and they did not have, or reasonably could not have had, adequate knowledge of the other party's property or financial obligations. Unconscionable here means so one-sided as to be unfair at the time of signing. Whether an agreement crosses that line is not a question for a jury: "An issue of unconscionability of a premarital agreement shall be decided by the court as a matter of law" (section 1615(b)).

"Fair, reasonable, and full disclosure" means each partner gives the other a genuine picture of what they own and what they owe: real estate, accounts, business interests, retirement savings, debts and other obligations. Disclosure is the one part of this test the couple controls most directly, and it is why careful drafting treats the financial exchange as part of the agreement rather than a formality before it. None of these rules makes an agreement's enforceability assured; they describe the questions a court asks.

Reading a list of ways an agreement can fail can feel uncomfortable weeks or months from a wedding. The point of knowing them now is that every one of them is addressed before signing, not after.

The Seven-Day Advisement and the Role of Separate Counsel

Family Code section 1615(c)(1) contains the timing rule that shapes the whole drafting calendar: "The advisement to seek independent legal counsel shall be made at least seven calendar days before the final agreement is signed." An advisement is simply being told, clearly, to get a lawyer of one's own. Under the statute, it has to happen at least seven calendar days before the final agreement is signed, not seven business days and not "about a week."

A second seven-day rule runs alongside it. For agreements signed on or after January 1, 2020, section 1615(c)(2)(B) requires that the party had "not less than seven calendar days between the time that party was first presented with the final agreement and the time the agreement was signed, regardless of whether the party is represented by legal counsel." Nonsubstantive amendments that do not change the terms are excepted. In practice, that means the clock attaches to the final agreement. A substantive change late in negotiations can produce a new final version and restart the count.

Separate counsel means each partner retains their own attorney. One attorney typically prepares the draft for one partner; the other partner's attorney reviews it, explains its effect, and negotiates changes on that partner's behalf. The statute's word is independent: the lawyer who drafts the agreement for one partner represents that partner, and so is not the independent counsel the other partner's side of the test asks about. That matters most for spousal support, because section 1612(c) makes a support provision unenforceable against a party who lacked independent counsel at signing.

The Family Code does allow a party to proceed without a lawyer, through an express waiver in a separate writing and the written explanation of rights described above. That path carries more formal steps, and each one is something a court would later need to find in the record.

How the Drafting and Negotiation Process Works

A prenup usually begins with a list, not a document. Each partner identifies what they want the agreement to address using the section 1612 categories: a house bought before the marriage, a business one partner founded, a retirement account, an expected inheritance, earnings during the marriage, life insurance, estate plans, and whether spousal support will be addressed at all.

From there, the work tends to follow a familiar sequence:

• Drafting. One partner's attorney prepares a proposed agreement reflecting that partner's goals and the terms the couple has discussed.
• Financial disclosure. Both partners exchange disclosure of their property and financial obligations, usually attached to the agreement as schedules. Because section 1615(a)(2) ties enforceability to "fair, reasonable, and full disclosure," this exchange is part of the agreement's foundation.
• Review and negotiation. The other partner's attorney reviews the draft and the disclosures, advises their client on what the terms mean, and proposes changes. Redlines go back and forth; terms on property, management, death and support are revised until both sides accept a final version.
• The waiting period. Once a final version exists, the two seven-day windows described in the previous section run before anyone signs. Signing at the rehearsal dinner, or after a last-minute substantive change, is the kind of timing that invites a later voluntariness challenge.
• Execution. Both partners sign the written agreement, each having had the chance to consult independent counsel. It becomes effective upon marriage.

After the wedding, the agreement can be amended or revoked "only by a written agreement signed by the parties," again enforceable without consideration (section 1614). Spouses deal with each other as fiduciaries after marriage, a separate set of duties that applies to postnuptial agreements and is addressed on this site's postnuptial agreement page.

Couples in San Diego often find the hardest part of this sequence is the calendar, not the content: venues, travel and family plans fill the weeks before a wedding. Building the seven-day windows in early keeps them from colliding.

Where San Diego County Family Cases Are Filed

A prenuptial agreement is a private contract. The Family Code's requirements for forming one are that it be in writing and signed by both parties (section 1611); filing it with a court is not among them. It reaches a courtroom only if a marriage ends, or another dispute arises, and one spouse asks the court to enforce it or argues it is unenforceable.

When that happens in San Diego County, the case is heard by the Superior Court of California, County of San Diego, which assigns family law cases to one of four divisions by ZIP code under the court's ZIP Code List (ADM-254):

• Central Division: Central Courthouse, 1100 Union Street, San Diego, CA 92101.
• North County Division: North County Regional Center, 325 South Melrose Drive, Vista, CA 92081.
• East County Division: East County Regional Center, 250 East Main Street, El Cajon, CA 92020.
• South County Division: South County Regional Center, 500 3rd Avenue, Chula Vista, CA 91910.

Most family law cases from the ZIP codes ADM-254 assigns to a division are filed in that division. The court's own list, not a city name, determines which courthouse applies. Wherever the case is heard, the same statewide rules govern the agreement: sections 1612 and 1615, applied by the judge, with unconscionability decided as a matter of law.

What to Bring to a Consultation About a Prenup

Because enforceability turns so heavily on disclosure, the most useful material is a reasonably complete picture of each partner's finances. That generally includes:

• Real property: a home, condominium or rental property, with how title is held and any mortgage balance.
• Financial accounts: checking, savings, brokerage and investment accounts.
• Business interests: ownership stakes, partnership or operating agreements, and equity compensation.
• Retirement accounts: 401(k)s, IRAs, pensions and similar plans.
• Significant personal property: vehicles, collections, or other items of real value.
• Debts and obligations: student loans, credit card balances, business loans a partner has personally backed, support owed from a prior relationship.
• Estate planning documents: any existing will or trust, since section 1612(a)(4) lets the agreement require arrangements that carry out its terms.
• Life insurance policies: especially if ownership of the death benefit will be addressed under section 1612(a)(5).

It also helps to arrive with a sense of which issues matter most: protecting a business or a pre-marriage home, how earnings during the marriage will be treated, what happens to property at death, whether spousal support will be addressed, and whether children from a prior relationship factor into the plan. Exact figures can be refined later; a general picture is enough to begin.