Rules regarding wills are usually based upon where the will was created. The general rule is that when a Will is valid at the time of creation, Florida will honor the will.
There is an exception to this and it regards certain handwritten or holographic wills. a Holigraphic Will is not valid in Florida unless it complies with the Florida Statute of Wills.
So even while your Mom’s handwritten will in California may be valid, it will not be valid in Florida. To make sure you have a valid Florida Will please Contact a Florida Estate Planning Lawyer