You may obtain an Abstract of Title which will show all bills of sale, mortgages, and notices of claim of lien filed and recorded by the Coast Guard. You may request an Abstract by navigating to the following page: Abstract of Title
NO, simply sign, date and return the Renewal of USCG Documentation Notice even if your address has changed. Please note the address change. You will receive a new certificate that shows your new address.
Additionally, vessel owners can update their Change of Address when renewing their Certificate of Documentation. The new address can be updated in the renewal application. That application can be found here. Per Cornell Law, “whenever the managing owner changes, the managing owner shall notify (the authorities) within 10 days.”