Let's dissect your text response:

I’m sorry you feel this way. If you would like to discuss, I am open to hearing your concerns.

The opening is good. Hearing your "concerns" gives H an opening to air out his grievances about you, the M...etc. Keep it short..hear what he has to "say" is the better choice. Otherwise you're just giving H more ammo. Do you see how word choices affects how H responds?


Also, wanted to let you know I have switched attorneys, as I felt that [Lawyer #1] was going to stir the pot unnecessarily, and I prefer to avoid drama and excess legal fees. My new lawyer is [Lawyer #2].


The MAIN problem with this part is trying to explain why you are doing this. Not his concern at all. The second one is that you're throwing in additional information that is unnecessary. Why would you say "not stir the pot"?? He'll latch onto this comment and come out right at you guns blazing. Don't give H any more ammo like this. Do you see?