Maybe Bob can donate it to the
https://pinetreebsa.org in southern MAINE (Raymond, Maine) or some such organization for use as a weekend get-a-way and go-to spot. Bob gets a tax deduction off his federal taxes, and the Boy Scouts are property tax exempt so's all they need to do is to hire a local caretaker for mowing the lawn, doing the snow, and watching that it don't run out of heating oil.
Possibly a volunteer caretaker will step forward?
Run it as a summer camp with two week stays for kids from MAINE? Right now, it seems to be pretty much an unoccupied property with the service people who do maintenance the only ones who actually get any benefit out of it. "Ya you know, I just love to come over here and mow the lawn ..... so quiet, so peaceful, so beautiful, and I'm the only person here today ..... and just look at that view down the lake! .....so nice to be here .... seems a wee bit crazy to me there's never anyone here?"
For 55-years, from 1937-1992, it was home to about 300-people, campers and staff, every summer, year after year after year ..... it was Camp Alton ...
www.campalton.com