Dear
(Individual) has been associated with our firm for quite a lot of years and has been one of our outstanding employees in the accounting department. For personal family issues, he is moving to your zone and we are very sad to lose him.
He has all of the good qualities you would expect from a good employee and I genuinely feel that any firm that hires him will be quite fortunate.
I believe that it could be mutually beneficial if the two of you could meet once he arrives in (city). He is mature and of course realizes that there may not be an opening for him at this time.
Shall I suggest that he make an appointment with you? I will be looking forward to your early response.