There is no law in Florida that requires a person to marry you even if you have had a long term relationship and the person promised to do so many times. If your reference to 100% relations is a reference to sexual intercourse, that does not mean that a person must marry you.
You do not need to place the funds in a specific type of bank account,. The proceeds are exempt from creditors claims but you may want to consult an attorney to help you plan for the long term protection of those funds. I have provided links to Fla. Stat. 222.18 and 440.22 for your review.
Do not file an eviction action. Since you do not have a landlord-tenant relationship with the family, a judge may dismiss an eviction action. File an unlawful detainer action. i am in Orlando and may be able to help you with this type of case. You may reach me at (407) 392-1872 or dennis @ chenlaw.net
If the you file suit against the person and they file for bankruptcy protection they may not have to answer the lawsuit. They can file a suggestion of bankruptcy in your lawsuit which will most likely stop the lawsuit until the bankruptcy is over or when you obtain relief from the bankruptcy stay. You have to ask the bankruptcy court for relief from stay before you can continue with the lawsuit.
Contact a landlord-tenant attorney immediately to address your rights under the lease. The attorney will probably have to review the lease. Florida has strict liability for dog bites. Posting Bad Dog signs helps and the landlord will probably have some liability but you will probably get sued along with the landlord in any dog bite claim.
More information is needed. Various notices can start with the language you provided. If a lender foreclosed on the apartment community the lender may get an order from the court for rent to be paid to them. If a condo, the condo association could be demanding rent for unpaid condo dues. The apartment complex could be in bankruptcy . . .
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