One was a double-wide manufactured home, and one was a house that had burned to the ground.

There is a navy base, a coastguard base, and 3 major manufacturers nearby.

However, if you had a ER and the data is received with Assessed Value you could do some quick calculations to get in the ballpark on a global scale opposed to looking up individual properties.

I do it on a much smaller scale. http://www.biggerpockets.com/forums/52/topics/1256...

@Robert Obniski funny, I came across a lead a couple weeks ago for a small manufactured home in the Dells, motivated seller, but not my market and I did not feel comfortable working with them. 

On the low end, though, he charges $3,500 per year for full services, with it increasing as the scope of the business grows.It'd be great to hear how much people pay for their accountants and how much that bill increase as the business scales. 

Nothing of this scale whatsoever.

What does a small scale investor owner have to do to move to this level of a purchase?

Given the house prices in MA, I don't see myself scaling too much, not very fast at least.

I assume you had that manufactured locally?