Do you want to invest close to home or you are wide open? 

I know HUD uses that terminology to qualify a structure as a manufactured home (must be at least 8 body feet wide or 40 body feet long), but I'm not exactly sure what it's in reference to.

PM me if you want a link to the directory.The amount charged can vary widely depending on the quality of information you are able to provide, quality of tenant, and the amount you are owed.

The house is a 1500sqft double wide, built in 1992, and in fairly good shape.

Well, there are a vast array of hypotheticals:1.)

You would need to find out if it is an actual double wide manufactured home or a Modular home.  

It was a 15ft. wide x 40ft. deep rectangle and had value only because it was adjacent to my sister's home in Provo.

If the buyer will use it as an investment (rental) property, then it's wide open and you can do whatever you negotiate.

I know a good GC that offers a wide range of contracting services (from Interior Remodeling to Outside).

For example, if I want to find wholesalers to work with in Milwaukee, do I just cast a wide net on the forums here at BP?