If the market flips to a buyer's market, updates will help you to compete.There's an important distinction between upgrading a functional kitchen, bath, roof, etc and repairing one that is broken.Buyers will want important repairs made. 

If you're looking to get into this market segment, it's best to visit a lot of these types of communities and talk to the park managers/owners.

At one point I was presenting / teaching a segment at the bootcamp put on by the mobile home park store.

(Yes, there are a few exceptions, like being a developer's employee)Wholesalers claim that they're not selling a property, but only a contract.To me, that seems like a distinction without a difference, but whether it's illegal or not is something that would ultimately be up to a court of law.

An entire segment of the industry has grown up as a foil to conventional guidelines, so to say there is very little information on this is just amazing to me.  

There is a distinction between wholesaling and assigning a sales contract. 

Protected Series 2 and on will hold separate pieces of property or operate different segments of the business.

Illinois law recognizes the distinction between the assignment of a right and the delegation of a duty and recognizes that an assignment can involve merely the transfer of a right.

It really depends on which states want to move forward with actually enforcing the statues .... now that you have legion's of BP trained folks and Guru trained folks I personally make no distinction since you sponsor pod cast that tout these methods... its become a big business and big dollars.. so the regulators are going to take notice and start coming down on what they see as licensed activity ..So maybe what the new wave of education should be focused on is how these folks can put funds together to FLOOR their inventory... so they stay compliant..

And the caveat about "professional wholesalers" is your distinction.