In the states where I've done condos, the rules are like doing a subdivision; and you need certain number of off street parking spaces, maximum impervious surface, and you need the zoning that allows multiple units. 

@Ben StevensonMy biggest regret is not turning my earned income to passive income from the deals I've done so far (10).Those 10 deals netted me $354,766.67, and I could've easily went out of state (prob PA, since I've been going down there on short weekend trips for about 15 years), and bought a 6 unit (2 adjoining properties, 3 units each) I looked at last year all cash, which from having run my #s, would've netted little over $40,000/yr after all expenses. 

I received a piece of marketing from Third Federal Savings & Loan (www.thirdfederal.com), offering to refi our primary residence to a 10 yr fixed at 3.29%/3.39%apr with closing costs at "only $595".Given I'm currently paying 4.375%, on the surface, it looks like I could shave 6-8 months of my current note with a slightly lower payment (~$20 less), it would seem worth it to do this for the $595 expense.

If you plan to build a portfolio of MHPs, it would be good to do this legwork in advance of buying parks, so you can build a relationship with the banks that surface as the best option prior to making offers.

And that's barely scratching the surface of what you need to know to come up with a CAP and know if the deal is even worth pursuing.

I’m partial to the property for a few reasons: it previously served as my first and primary residence, it consists of a mobile home resting on a 10-acre parcel of land, and my family has recently acquired the adjoining 40 acres that bounds my land in New Cumberland, PA.

Are we talking walls or surfaces or literally all over?

Surface prep and eliminating the moisture are the most important steps in the process.

That would be odd though because cement board is used as a surface for something like tile not carpet. 2.

Only 3-5% have been really bad, and it was often not who I would have expected from the surface level.