It can be a very deep subject and your question is pretty broad. :)

Looks like a 10% gross rent yield, maybe 6% net since you're on the higher end of the tenant spectrum and maintenance should be low for many years to come on new construction.If you finance it at 4% w/ 75% LTV, then your total ROI is roughly 12% w/ the principal reduction, w/ tax benefits ROI will jump a few more points, plus potential appreciation (what would comparable new homes have sold for in 2006?).

They've bought and rented some houses in my area too, and several of those were listed at the upper end of the rental price spectrum for 3 or 4 BR houses.  

It is tough to get this type of information in a broad sense because it depends on the local municipality but I need a starting point.  

Upon sales closing, Seller agrees to pay to the broad listing broker (if broker identified is not the broad listing broker):$3,0007.Net amount due to seller: $91,0008.

Also, I don't know if it was just my area but I am looking for groups that have a wide spectrum of people.  

This is a very broad question but here goes: The title company usually handles the search for liens and back taxes.

@Daniel SistoYou'll get better responses if you ask very specific questions instead of broad ones.

However, it seems like your interests are very broad.  

We have one here in our area that gives pretty broad information.