The other consideration to keep in mind is the family home. The family home is treated a little differently than other pieces of property. It is also presumptively equally divisible, meaning each spouse has an equal right to half of the equity, however it is not subject to the same exemptions as other family property. Whereas the value of other property owned before the marriage can be exempt from division, it does not matter who owned the family home before the parties became spouses. There is no exemption for the value of the family home. So, if your significant other moved into a home that you own, they likely have a right to half the equity the day that you become spouses.
Which brings me to the whole point of this article: the Top 10 reasons why couples should consider a prenup when wedding planning: