Peeing around the house and violence are weekly events, when is it time for a memory care center and will they accept him?

Using the house as a toilet and violent tendencies mean it's time for a facility. Tour a few memory care facilities, decide which one you think is best suited for him and get the ball rolling. And I agree with cmagnum. The next time this person becomes violent call 911. Doing so could actually speed up the process of getting him admitted to a memory care facility.

The next time they are violent, call 911 and have them committed for a full evaluation.

Now, kiddo.... unless they have a UTI, which, believe it or not, can make someone do stuff like this...