I fully agree with the short and simple. He is not capable of taking in anything wordy at all. He needs small, succinct sentences, and without emotion.
Get a recommendation about a lawyer. Have your seen one in the past to protect yourself through his coming and goings and crazy MLC antics?
The fact he wants this done FAST, puts the ball in YOUR court. You can call the shots here and I know you won't go for anything more or less than fair. So, please understand, you have the power in this right now.