Lawyers are not of much help when it comes to reopening already-closed accounts. Most of the time, banks will send a cashier check for whatever money left, if they close accounts abruptly. Sometimes, they give a month to move funds elsewhere. When a bank closes an account for that last check which they find suspicious--subsequently cleared by the payee bank, that's when banks give a run around. File a complaint with CFPB without any lawyer, unless of course that amount is substantial.
I agree - you don't need an attorney to file a complaint with the CFPB, and you should file a complaint with the CFPB ASAP when a bank starts pulling this crap. But the comment I was responding to was saying you should have an attorney to handle any large transaction, which I disagree with.
I wouldn't expect them to help with reopening, but if a bank is investigating an unexpected large deposit and determines that "Oh, it's coming from a law firm's escrow account" it gives at least one obvious possible explanation - and may also indicate to investigators that the account holder is someone with legal representation so don't be sloppy.