I know how you feel. when my pet sitter moved away, I had to find someone else. I searched and interviewed people and nobody was right. I've known about Kate for years, but she was always board only - no house calls. When I saw she started making house calls, I called her and it's been love ever since.
The first time I went away, Kate left me notes telling me who did what and who came to sit with her. After a couple of visits, my shyest one came and sat next and on her lap for 15 minutes! Kate was so excited she couldn't wait to call to let me know.
I knew after her first visit, she was the right person and that visit confirmed my decision. I come home from trips and my girls actually seem disappointed that it's me and not Kate coming through the door.
So, if you do decide that you need an alternative either now or in the future, Kate is a great choice and for your location, her boarding facility will work perfectly for you. The "hotel rooms" are quite large and comfortable looking for a kitty and contain all kinds of amenities.
Most importantly she knows how to administer meds, insulin, inhalers and she is directly across the street from the satellite office of the vet we both use. Oh I forgot to mention we go to the same vet! and the emergency 24 hour places are not far away either.
What I do, is keep the girls medical records next to the carriers and the care credit card, so if she ever does need to use it, it's all within her easy reach.
good luck and hopefully your pet sitter will come through.