I'm a Florida family law attorney and I believe I can provide some assistance here.
There is no "guideline" per se. Rather, we have statutory language that defines what is considered marital property and what is considered non-marital property. For example, marital property is generally anything that was accumulated during the marriage, with some exceptions. Similarly, non-marital property is anything that was owned by either party prior to the marriage.
Anything that is marital in nature would be subject to equitable distribution, meaning an equal division between the parties. If the property is non-marital, then it would remain with the party that had ownership prior to the marriage.
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