I use my real estate attorney, who is actually familiar with the laws in my jurisdiction not someone halfway across the country that read some BP articles.I'll give you the concrete answers you are looking for, because I feel your pain in trying to find them.

@Amanda Britton I feel your pain.

But if push comes to shove, I'd rather forfeit the $200 and get them out at the end of the month as pain-free as possible.What should I do?

Once eviction is filed, the only way for the tenant to stop it is to pay the rent, late fee and 180 dollar court filing fee.To people making 40-50k a year or sometimes less that is a pain.

Zoning restrictions can be partially a pain depending on your county and its zoning board.

The seller may have given you a good deal initially but now and likely going forward will be a pain in the butt, hence you should hopefully refinance and be done with him

This is a painful lesson. 

My fiancé and I were able to buy a foreclosed house in Hanover, PA in April for $135k that needed about $10k-15k worth of work.  

Went to all local banks in area and rates were higher and more pain in the *** than the big guys were. 

A pain in the pa-toot but a formality easily accommodated.Oren