Does an auto repair shop have to give me a written estimate in Montgomery County MD

Under County law, you are entitled to a written estimate if you ask for one and the repairs will cost more than $25. The repair shop must have a sign posted that advises you of this right. The shop is allowed to charge you for the time spent preparing a written estimate. The final repair bill may not exceed a written or oral estimate by more than 10% without your prior authorization. However, oral estimates are often hard to prove.  more