I have no leads on helpful landlords, but you'll probably need a training space unless you score a landlord who doesn't mind you adding silks to his high ceiling spaces! The only aerialist space that I know of in RI is Arielle Extreme in East Greenwich, other closest options are closer to Boston. There is one circus company, Circus Dynamics, not sure what else there is since I do props, hoops and fans, but I'm super happy to see additions to the circus community arriving!