In Florida, postnuptial agreements are generally enforceable if both parties entered into them voluntarily, with full financial disclosure, and without coercion. However, the fact that your wife’s attorney advised against signing and that both attorneys declined to sign could be potential challenges if the agreement is contested later, as it might raise questions about whether both parties fully understood the implications. Changes in Florida’s alimony laws won’t necessarily invalidate the alimony waiver, but if one spouse’s financial situation significantly changes, it could be a factor in a challenge.

To assess the enforceability of your agreement, I recommend consulting with a family law attorney in Florida who can review the document and advise on any potential weaknesses. This can be done through a limited consultation for a reasonable fee. Claims of coercion or inadequate legal advice could be the most significant challenges to the agreement’s validity, so ensuring both parties had independent legal counsel and full disclosure will strengthen its enforceability.