Hello @Cathy813
If your HOA has decided going forward residents can't do STRs then as you have already done you need to speak to a lawyer specialising in HOAs to see if there are grounds for this to be over-ruled if you want to continue hosting. If one hasn't responded then they clearly don't need the business so look elsewhere. (Are there are people doing STRs in your building - if so why not get together and provide a collective response).
You will also need to contact Airbnb to ask them to cancel any up and coming booking and snooze your account until you find out whether you can continue.
The only thing Airbnb will be able to do is help you cancel upcoming bookings. Disputes between HOA and property owners is between you as the person who runs your STR business and the HOA.