A postnuptial agreement is a financial planning document that married couples in Roslyn sign for practical reasons: a new business, an inheritance, a career change, or paperwork that a prenuptial agreement never addressed before the wedding. A postnuptial agreement puts new financial terms in writing once a couple is already married, and New York courts treat that timing as reason to review the agreement more closely than a prenuptial one.

Joseph Law Group, P.C., has practiced exclusively in matrimonial and family law since 1998, and our dedicated Roslyn postnuptial agreement attorneys have drafted these agreements for couples at every stage of marriage, from newlyweds finishing paperwork to couples married twenty years who started a business together.

Book your free case evaluation and bring the financial change that brought you here.

Before You Sign

Full financial disclosure matters. Gaps in disclosure are one of the first things a challenging spouse's attorney looks for years later, particularly around property division questions involving a business or investment account.

Fair and reasonable terms are required at signing, and the agreement can not be unconscionable by the time anyone tries to enforce it. New York judges scrutinize postnuptial agreements more closely than prenuptial ones. That closer review is exactly why getting the agreement drafted the first time correctly matters so much.

The same formal requirements apply as with a prenuptial agreement. The agreement must be in writing, signed by both spouses, and acknowledged in the same manner required to record a deed. Our Roslyn postnuptial agreement attorneys draft with that closer scrutiny in mind from the first meeting, not as a correction after a dispute arises.

Common Questions About Postnuptial Agreements

  • Does signing one mean the marriage is in trouble? Rarely, in our experience. Most couples who come to us are responding to something practical: a new business, an inheritance, or an unfinished prenuptial agreement conversation from before the wedding.
  • Can we include child support or custody terms? No. As with a prenuptial agreement, those terms are decided based on a child's circumstances at the time of a divorce, not by an agreement signed years earlier. The same limits covered in what a prenup excludes apply here as well, since both agreements are governed by the same statute.
  • Will a court definitely enforce it? Only if it meets the formal requirements and was fair and reasonable when signed, and plain-language guidance on postnuptial agreements makes clear why disclosure gaps are the most common failure point. An agreement drafted without full financial disclosure, or without both spouses understanding the terms, is one of the more common types to unravel under closer review.
  • What happens if our finances change again? A postnuptial agreement can be amended later, following the same formal requirements as the original. Wealth-planning guidance on these agreements makes the same point: working with attorneys who draft them correctly the first time saves a second round of legal fees down the line.

Our Roslyn postnuptial agreement attorneys answer these same questions in nearly every first consultation, and we would rather you ask them before signing than after.


Roslyn couples who own interests in family businesses along Northern Boulevard, or in property near Hempstead Harbor that has passed through a family for a generation, often need agreement language tailored to that specific asset rather than a generic template. Our team of Roslyn prenuptial agreement attorneys will tell you plainly what is missing before we draft anything.

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Why Couples Choose Joseph Law Group, P.C.’s Roslyn Postnuptial Agreement Attorneys

  1. Trusted by other attorneys. Other lawyers across Nassau and Suffolk Counties refer their own family law matters to our firm, postnuptial agreements included.
  2. ADR-trained drafting. Our attorneys are trained in mediation and collaborative law, which shapes how we negotiate terms between two people who are staying married, not adversaries preparing for court.
  3. Direct attorney access. We limit our caseload so you work directly with your attorney from the first draft through the signed agreement.
  4. A perfect 5-star Google rating, built across more than 2,000 family law matters handled by our attorneys since the firm opened its doors.
  5. Founded in 1998 by James P. Joseph, with 100+ years of combined experience among our attorneys, all of whom practice matrimonial and family law exclusively rather than dividing their time across unrelated practice areas.

A postnuptial agreement works best when it is signed while a marriage is going well and finances are stable enough to talk through calmly. Our dedicated Roslyn postnuptial agreement attorneys can help you draft one that actually holds up if it is ever tested years down the line.

Book your free case evaluation and bring your paperwork; we will advise you on practical next steps.

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