Florida Statute 744.3101 governs the laws and rules surrounding petitioning the court to have someone ruled mentally incompetent. Please continue your research, reading this statute may be a good starting point. I believe that, in general, someone is considered mentally competent until a judge has ruled otherwise. We are not attorneys and do not provide legal advice.
DPA by: Anonymous
If she has a moment when she is clear minded, have the DPA executed with a witness, you could also video the execution. Michael Wappler, Florida Nonlawyers, Inc. 321-458-1814