(a) A claimant may discharge an attorney at any time. The claimant shall notify the board in writing, and explain the reasons for the discharge.      
        (b) When a dispute arises between or among two or more attorneys employed by a claimant, the attorney presenting the earliest executed attorney contract will be deemed the attorney of record unless the claimant or a subsequently retained attorney establishes good cause for discharge.       
     Source Note:        The provisions of this §64.25 adopted to be effective April 5, 1990, 15 TexReg 1629.