Then you are under the mistaken belief that your title is clean.

I mistakenly thought it was taken care of and a title insurance policy I received on a different unimproved lot was for this one.  

Hopefully he is mistaken. 

I was mistaken, they have a pay up front option of $3500 or the pay later option that takes the 9%.

@Erin Wysocki Sorry, but you're mistaken on two points.  

Maybe someone more familiar with Fair Market Rents will comment I may be mistaken.

You'll also want to get the specifics of what you can earn for your property in Beaver county as the price is determined by size and average cost in your area (county if I'm not mistaken).

Market rent is likely $3800 and I am at $3150, and never raised rent in the 2 years they are there...Now I am going to raise 5% every year to get caught up with the market, so that they don't have incentive to stay there forever, since I can no longer ask them to leave....I actually feel sorry for them....Diane,  unless I'm mistaken, the law does not apply to SFH, so you should be free to raise rents in one fell swoop 

If i'm not mistaken, owning rental properties is a business. 

I may be mistaken then.