First thing to do - survive Put the tables back in. Tell customers she open for sit down business.
Find an attorney, but one who will not bill crazy hours. Call her local councilman or state representative for help. Tell them she’s being harassed by bureaucrats, and for now, she doesn’t have the money for handicapped bathroom, but will work on it. Tell them extension is needed for a period (1 year?)
I know a couple guys who work as city inspectors. They generally want as little trouble as possible. Tell them too “I’m working on it.” If they let her slide, no one above them cares.
Good advice there, especially about contacting a state representative. Thanks.