My experience documenting our boat was pretty simple. In purchased it from a Canadian citizen in FL. The boat had been previously documented and the hull
was marked with the number. I searched the database and found it easily last documented about 10 years ago. I completed the paperwork from the website and sent the coast guard bill of sale
with a copy of the title and a check for the fees
. It took about 3 months and I received the official document. It was also easy to change the name of the boat in this manner. Once I had this, I applied for a ships station license
from the FCC. Again, very easy. That took less than a week. The total cost for the coast guard process was around $90 or so.