One of the benefits of larger markets is that there is less raw land available in cities to add supply and pressure values

I'm curious how much value increases on raw land if I place a manufacture home on it in the midwest region. 

More than the raw material, in my experience.

I would like to start working on a current project I have been trying to close off buying raw land in the center or Weslaco City to potentially subdivide and build.

Bought raw land , rezoned land into residential.

Right now you're sitting on a piece of raw land.

My thought is the possible rent value has no correlation with raw land value. 

How much do you know about raw land? 

Meaning, the lender will usually determine the average tax % for the area after improvements have been made and they'll use this amount to determine your debt ratio as opposed to the original/artificially low taxes that are assessed on the raw land.     

For an uneducated consumer or depending how strong their sales team is this is a very raw deal.