58 Pa. Code § 93.17. Registration of abandoned boats.
Searching on the inter web for "claiming abandoned vessel process in Pennsylvania" took about a minute and a half. It is a bureaucratic process no need to pay a lawyer to wind your way through the process. Money spent on box of candy or doughnuts for the nice lady who's has been working in the tax office, DMV, or whoever handles vessel registrations would go much further.
If the vessel is documented it is a different process going through the Coast Guard
Once your club obtains the title or the documentation on the boat they will be free to do with of the boat whatever they wish.
It would be prudent to have insurance on the hull for liability, salvage, and pollution mitigation that would be in effect the moment ownership is transferred to the club.