https://www.dco.uscg.mil/Portals/9/D...kthNEOvg%3d%3d
The Simplified Method will use a state title. In Non-Title States the registration is generally used as the title. The Registration itself includes a form on the back to transfer the ownership. The owner is implied by the registration, unless that registration shows as having ownership transferred.
There are 16 states which don't title boats. People document their boats all the time. If this were really a problem, it would have been discussed ad nauseum on this site and our sister site Cruisers Forum.
Best bet would be to contact the USCG. You could pay fees for a 3rd party documentation company to handle it for you. Despite popular belief, they are not 'scams'. They are paid a fee (albeit high) to provide services such as navigating the bureaucracy and paperwork for you.
Good luck.