Transferring a Boat Title: Quick Guide Fill in the transfer section on the back of the boat title, and sign it in the presence of the notary. Have the buyer take the title to your state's title office to apply for a new title. Then the title will officially be in their name.
Based on 30 years of yacht ownership I would agree that on average 10% of the value of the boat per year on maintenance, berthage, insurance, etc is about right if you do a lot of the work yourself. A professional skipper of big yachts 80ft+ says for those boats 20% is about right.
Specific requirements vary from state to state, but over 70% of the U.S. requires boaters who meet certain criteria to take a safety education course. The resulting accreditation is called a certificate, not a license, because it is good for life and doesn't expire.
There are mooring buoys all over the coast, some owned by commercial organisations but many more by harbour trusts or sailing clubs. These are nearly always less expensive than marina berths.