Legal Question in Family Law in Florida

This cannot be answered without more information. If there are any judicial orders in place concerning the home, they may control; if litigation was filed but is holding pending the husbands release from jail a court order may be necessary. If a foreclosure is pending then she needs to contact the mortgage company. If the property is Homesteaded she has a valid claim.

The short answer is maybe; are there others residing in the home? What are the circumstances of such?

the home is marital property and she generally has rights to the property, however whether she just moves right back in wouuld depend upon many other facts. You should have her confer with an attorney (usually through the local bar association you can get a low cost consultation).