text: how do i write a departure letter to clients informing them i am retiring? i need to write a letter for a co-worker who is leaving the firm, but leaving his clients with us (we bought them). he is moving out of state with his significant other.  some client's he's had for over 20 years, some not so long. first paragraph stating member is retiring second paragraph inviting client to continue to do business with your firm third paragraph apologizing for any inconvenience and thanking client for understanding.