Aw, Lisa, what a sweet kitty and I know you’ll want to find lodging where you can keep her with you. If you haven’t yet, it would be important for you to speak to someone with Social Services in the Transplant department. All transplant patients meet with them in the weeks prior to treatment. They can be really helping in finding lodging and working out financial plans that work for you.
One suggestion they may make is the Gift of Life Transplant House which provides very affordable housing. However I don’t believe they allow pets. But it may be something to consider if you could find someone to babysit your cat. I know your kitty is an emotional support companion, but you may need to check with your transplant team to see if it’s ok to have a cat in the house with you. A stem cell transplant is a risky time for infection. I know I wasn’t able to be around pets so it will be good to check.

Here’s a link to Gift of Life transplant house: https://gift-of-life.org/be-our-guest/guest-rooms/

You mentioned that your husband has a bone marrow and blood cancer. There are quite a few different diagnoses which can require a stem cell transplant. The amount of time you’re staying in Rochester is suggesting to me that this is a transplant using your husband’s own cells. The recovery time is much shorter for that transplant. Does William have multiple myeloma?