BP,BLUF: Based on raise in HOA/fees in our current home and the decrease in rent based on current market there is a possibility that we would have to rent at cash flow neutral. 

So they're only willing to budge 5K, which doesn't do much for me.Another perspective on this is, if they are willing to go down 5K I would immediately think that they are bluffing. 

@Thomas Smothers it sounds like the seller is bluffing and can't enforce what he wants you to do. 

I bluffed and told them he needs to move out, but do I need to formally evict just the son?

Most people are bluffing when they threaten lawsuit.

I'm certainly not a lawyer (so I could be off-base here), but common sense tells me that there probably isn't a law that says that if he doesn't receive a copy of the lease, he is allowed to violate it.This is exactly what I was thinking, so I did a little bit of research and he was just bluffing and there's no such thing as that in the state law.

They also agree he may just be bluffing, and without a contract it's a lot of he said she said so really it comes down to what the value of his work is worth (which is NOT $2,100 especially when work isn't complete).

I think he's bluffing ;)

I'm sure I'll threaten to evict myself if I don't pay on time, but I'll also know that I'm just bluffing... :-)

The attorney is absolutely bluffing...he knows he would have to go to court to get the foreclosure rescinded but by bullying you he's hoping to avoid the cost.