Most gurus who scam people have very fine print allowing them to cut you off for calling them out.

If you decide to operate one outside of their desired areas, they will come after you with hefty fines.

I know so many good people in the RE space that I know I should be just fine. 

But if your plan is to rent the mobile homes out you should be fine with one lot. 

If you want to combine two or more lesser sales into one higher purchase that is fine as long as your purchase meets the timing requirements for each sale.  

If you can get a better deal on the home due to age its a fine and if you need financing banks do not judge year built. 

Quote from @JD Martin: Quote from @Benjamin Weinhart: Speaking to your item #6, I was actually told by the staff here over the phone maybe 5-6 months ago that DMing someone is fine so long as it's not a copy/paste ad and is specific to the individual.

It feels a little feminine to me, which is fine if you are going after that market segment. 

If you do a good job picking tenants, you will be fine.

In fact, Chase and several other banks have been slapped with fines for their misconduct relating directly to those issues.