Go to each facility in person with your calendar show the AD how many jobs you already have booked at other facilities and that she still has a chance to grab a few dates this year and next while they are available!, present your pitch to the AD,...you have to put in the time and "have the goods" that's the bottom line! ....what you sound like, stage presence, interaction with the residence, different theme flexibility "country, 50's, Broadway showtunes, christmas, hawaiian, holidays,etc, etc, ,... you have to sell yourself and make that AD say "WOW I gotta have this guy play for our residents!"

Good luck