Once you know their name, plug it into the clerk of courts/ register of deeds.  

That's assuming that the tenant always pays on time, and that nothing ever happens on the property (not likely).If you want to stick with single family investing, maybe grab the list of eviction filings from the local court house and start calling the landlords at the single family properties.

The owner of our house is going into a tax foreclosure, its actually in the courts now.

Would she have to take him to court?

A Court that covers places like Nashua or Manchester might tend to be more tenant friendly then say a Cort that covers more rural areas.Have you thought about going out towards Worcester?

I bought a probate through the MLS and made the offer through our Realtor, and then we had to go to court. 

Hi MatthewI'm from Auburn, but there is a real estate investment group that meets in Montgomery on the 3rd Monday of every month at 1020 Monticello Court at 6:00pm.

Contrast this--if someone who didn't pass the bar hangs a shingle and starts representing people in court (and believe me, it happens!)

The difference will be the common benefits - whether or not there's a pool, tennis courts, "free" cable, etc.

Doing it yourself is a couple hundred dollars but you won't know if you did it correctly until it gets tested in court, at which point it will be too late.