For your office maid to work with a new employer, her current employer needs to agree and issue a No Objection certificate. If she can't get that from her current employer, then her visa will be cancelled, and she wouldn't be able to return to Doha within 2 years. News has it that this will be increased soon to 5 years.

so, current employer has to say yes first. find a job, transfer sponsorship.

otherwise go home or go to another country for work.

all the best to your friend.