Could often be challenged after divorce?
For example:
"One of the core underlying philosophies of prenuptial agreements is that they should be fair and just for both spouses. To that end, a prenup cannot contain any provision that significantly favors one spouse over another, such as a disproportionate property division after divorce."
What you come into the marriage with also comes into play. Some states let you keep what you came with.
Trump gave his first wife Ivana $25 million in his pre-nup.
No doubt he also gave his second wife Marla Maples a substantial amount since she still lives rich.
Did state laws had anything to do with Kelce/Swift getting married in NY?
I give their marriage a less than 100% chance of lasting forever.