I am about done rehabbing a house I bought a while back.  

I agree with @J Scott and @Manolo D. what anyone can tell you online or in a book is how that person goes about coming up with estimates.

Simple online mate. 

In many counties, like where I live in Jackson County, they will reduce the assessed value of a property that is dilapidated or bought in foreclosure or whatever for two years (if you challenge the value based on your purchase or other info).

Bought a house for 24K needs about 6k in repairs rents from 800-1000 a month. (60-70k ARV)I'm interested in maybe doing a rent to own deal. can anyone point me in the direction how to to structure that deal?

It's funny because the online course has actually covered this question in classes since I originally posted, so I was just thinking ahead I guess.  

There are online directories where you can look up a prisoner's location (you'll have to know whether they're in federal or state prison) and then you can send them a letter.

It's a 2 family(we don't call em duplexes here) this is what it looked like when I bought.

If still no one is taking them, they will post them online (such as LoopNet).

., then foreign qualified in RI (Foreign LLCs still must have a Registered Agent).Additionally, forming an LLC in Mass. costs $500 by mail of $520 online.