If you were only charging one battery you might get away with solar, but on multiple batteries it doesn't work well !! These folks that choose to live in there fancy housing editions can keep them, I choose to live out in the country among hard working tax paying citizens that help their neighbors nd work hard to get along !! Being stuck in an apartment really sucks, I remember those days well !! Perhaps you could look at renting a small house or duplex that has a garage. With the criminal element on the rise, I would never trust my boat out in the open in a public place. Paying for a secure storage are might be your best bet, not only for charging batteries but for security as well !! I know that I get a healthy insurance discount for keeping all my toys in my locked barn !! Good luck...
I don't care for the appearance of some folks cars either, as they never wash them, choose weird colors or let the rust show thru.. I also believe it is extremely selfish to impose your ideas and beliefs onto to others, if people would learn to mind there own business, we would have far less problems in the world !! In my area, we dont need no fancy HOA or whatever it is called, if someone's yard gets trashy we simply get a few neighbors together and go talk to them, if there is a problem, we help them take care of it, no lawsuits, no courts, no police, no problem !!