RSM Tenon chairman Adrian Martin will step down from the board as soon as a suitable successor is found.
Non-executive director Michael Findlay will also step down at the end of May to rejoin Bank of America Merrill Lynch in a senior executive role.
RSM Tenon chief executive Chris Merry said the process to appoint new board members is “well underway.”
The firm has undergone a troubled period and at the end of February announced plans to cut 10% of staff and merge offices to help it recover from a 9.3% drop in revenues to £107.8m in the six months to 31 December 2011.
In February, Chris Merry was appointed chief executive after his predecessor Andy Raynor and chairman Bob Morton resigned in January following a 10% slump in revenues in the past six months of 2011.