Try AirBnB for proximity and variety. There are at least 50 AirBnB choices around Letchworh, some suitable for individuals and couples some for larger groups.
For one example if I knew I'd be able to go I would book this one
now for $81 per night one or two people five minutes from Letchworth in Mount Morris.
I had great luck with Air BnB at the Canadians in Canmore and the US Classics at Ward Pound Ridge where my suite was less than half the distance to the events site compared to the hotels in Danbury.