Two things:
1. I'll be interested to see how Gary comes out after talking to the general manager. He/She may honor the agreement, in turn, over riding the AD. That, in itself, can be a problem for employee/employer relations. (Not Gary's problem...but one management has to consider.)
Or, the general manager may go the "delegation route" giving the AD complete control of the entertainment decisions. The best Gary could hope for in that case is collection of unpaid invoices. In either case, I agree with other posters here, litigation is not worth it, financially or stress-wise.
2. I have become somewhat disenchanted with the nursing homes. Over the last two years I have seen a lot of turnover in staff and management. When I first started playing them I was favorably impressed by quite of few of them. Little by little the atmosphere has changed and a lot of the staff that work directly with the residents can't speak English well enough to converse with someone who has all there faculties, much less impaired geriatrics. I am seeing more glazed looks on resident's faces as they wait to be told what to do next.
I am not close enough to the situation to have observed any abuse or special courtesies extended residents other than at the parties I have played...so can't comment on that.
Eddie