(a) Whenever parties have appeared by counsel they may not thereafter appear by different counsel or in their own behalf, unless an order of substitution shall first have been made by the Court after reasonable notice to the attorney for the party and to the opposing attorney. Until this is done the authority of counsel of record shall continue for all proper purposes.

(b) When an attorney of record wishes to cease representation of a party, the attorney shall file a motion therefor and give adequate notice to the client and opposing counsel. If the motion is sustained, a copy of the order shall be served on the client and all attorneys of record by the Clerk pursuant to LR 205 below.