We would be installing a street and double stacking townhome style units on each side.I part I don’t have experience with necessarily is how to better understand infrastructure and site work cost (road, utilities, excavating, etc.

@William Coet, as Jackson noted, there are too many variables to even begin.Two things to remember, any tax losses you utilize to offset incomes, will reduce basis making bigger tax bill in sale year.  

What's next pay their utilities for them.....? 

I won't be charging him any rent, he will just pay for the utilities used for that period. 

Rent assistance is also provided by other factors such as number of bedrooms and if the Landlord is providing any of the utilities.

After talking with planning they mentioned that utilities were 2 miles (10,000+) ft away.

Quick question to everyone, if you are not utilizing a wholesaler, then what is the way you find the best deals?

But you know enough to be able to fill in the blanks and get close... public records, utility companies, visiting with residents, walking the park and networking with other park owners. 

People work, they are in the middle or organizing after a move, they have utilities to set up - it's a relatively hectic time period for a lot of people.

But really like others are saying to get affordable housing you need to utilize land/lands that already have infrastructure in place and systems that can handle the water and sewer and storm.. so density bonus's are what is needed .