I lived next to a mom and pop store, not grocery, selling crystals and such. The owner of the store allowed a homeless camp on the store's lot. City could not clean it out because it's on a private property. The closest tent was less than 50' from my bedroom. The homeless fought, burned stuff, blasted music and hopped over 8' fence into my backyard to help themselves with anything they found there. Store owner was not bothered perhaps because during the day the homeless wondered off, perhaps he just liked them. The police did not do anything, would not even come over noise complaints. Would you like to live like this?
I don’t think it’s a common pattern for mom and pop stores to have a homeless camp on their lot.