To obtain a judgment for damages, you need personal service on the defendants. So you need to locate them in NY and have them served with the summons. Posting the summons and mailing a copy is only effective for obtaining possession, not for money damages.
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
A partition action allows your husband to force the sale of the property. If the siblings want to stay in the house they will have to buy out his interest. Consult a real estate litigation attorney for this type of case.
The debt collector's attorney will probably go through the steps to get a court order for him to appear for the deposition and if he does not show up, they will issue a warrant for his arrest. He should consult a bankruptcy attorney to determine if he is a candidate for bankruptcy.
You can probably find someone that will work for the fee offered. I suspect that you will have difficulty finding a board certified attorney that will agree to that unless your injury case has huge value.
You should have been served with a copy of the petition for writ of garnishment. You would have had the opportunity to let the court know if you qualify for an exemption. You need to contact an attorney asap, or go to the courthouse and review the file. if you contact an attorney, have the case number available for them to review the court docket online.