:)BTW I'm a part owner in a 70 pad lot rent park, and own 18 doublewides on their own land and have looked into all aspects and deal types in this business and gave up on lonnie deals in parks before I wasted any time or money.

If it's a garage conversion, understand that the added bedrooms may be sitting on the formerly garage floor slab - those floors will be cold and hard, even with padding under carpeting or a "floating" hardwood floor.

However, the price per pad is fairly reasonable for the pad rent ($150) if the pads are ready to go, i.e. piers or slab, electric, water, sewer.

No real damage, but just a slob's pad.

Do you get called for your OK over a particular amountwhat is their tenant screening processwhat is the commission for new tenants - if they brake the lease do you get a new tenant process freewhat is the rental range and deposit requirements?  

I don't know about Arlington values, but that would seem high, in my area, the way I buy.Ask them to write (on a yellow pad, which you conveniently have), exactly what they would accept.

If they don't pay it, next months rent is applied to last months late fee, now their rent is only partially pad and you can threaten eviction. 

You can also get a general idea for rental rates by looking at actives on craigslist and hot pads 

Here’s a list, which provides a good start:-Developed vs Raw land (meaning infrastructure, lot/pad delineation, utilities in place, etc)-# of filled lots?

I think your CL idea is on the correct tract but I get more of my responses from Zillow rental manager (hot pads, Zillow, Trulia, etc) than I get from Craigslist.