I was hoping for an inpatient treatment. I am considering finding him a place to stay away from us for a time.
That might be a very good idea.
The criteria these days for inpatient treatment are very tight. There is a big and very inadequate space left between inpatient treatment and relatively stable outpatient treatment.
If you can arrange something where he can stay elsewhere, minimizing his stress from relationships and minimizing the stress that he inflicts on you, that would be great.