I want to purchase a female black cat at petsmart can I put her on hold?

you should call the store directly & ask.

Call the store. The manager should be able to give you resources if they don't. I know they have pet adoption weekends so you can ask about that too.

Ask the cashier about adopting her.... They are generally extremely HAPPY to see a good home ask for a homeless kitty!! They are generally already spayed and have current vaccines! A great deal for both you and the kitty.

I agree call the store is the best way