(Just like apts.)If you have any park owned homes you will have to value them individually.

If so, is it through each individual city or a county? 

Get a strong operating agreement drafted that outlines the purpose of the business and your individual roles in detail.Take it one at a time and grow from there!

Provide content that teaches them this knowledge.

or the individual's income? 

Damage in individual bedrooms is easy enough, but you won't know who left that huge hole in the wall in the living room.

But I guess this is subjective to the individual wholesaler themselves, shady ones don't care much about the seller, or know about the market, good ones want them to get the most they can get and know what that is. 

You'll also have to consider what assets you guys own individually versus as tenants by the entireties.

If you are a hard working middle income or higher individual you will find the social standards of most lower income to be considerably different.

2: Self management will teach you far more than anything else.