Accepting renter with felony?

[Brianna H.]

Obviously the answer is no, right? Here is the background:

I have 2 really great, low maintenance tenants in my rental house. They don't have a record, pay on time, have steady jobs, etc. They have been living in the house for about 6 months now and want to add a friend to the lease. On his application, he disclosed that he has a criminal record and that was verified on the report I ran on him. It was an intoxication assault with vehicle charge 4 years ago. Looking at the punishment for this offense (F3), it looks like the minimum time he served was 2 years (whether this was in jail or probation, I am not sure). It does state that he was discharged from probation in September. 

So what do I do? He does have a job in construction. I would say absolutely no if he would have applied with them in the very beginning, but the other two are great tenants. I kind of think he is already living there, so do I make my current tenants mad by kicking him out? What would you do in this situation?