As along as you take the lessons from this and utilize it on your next deals (yes, plural) you'll make great progress!

Utilities paid by me or lawn mowing and snow, realtor commission for renting, legal expenses etc.  

Consider cleaning, lawn care, snow removal and supplies as well as utilities  in your calculations.  

Seeing as they have full utilities and stick built, they should be categorized as real property and have good value for their size.

They require tax returns, voter registration, car registration, driver license, and utility bills in the app to prove it's your primary.

Quote from @Deandre Brown: When analyzing deals, a few additional factors I like to consider are whether the electric and gas utilities are charged per unit or as a single expense.

If you use different sources it will be difficult to calibrate the different scores, but think of it as a percentage of the max available score.This particular score seems to be based on an applicant's credit history, including payment history, credit utilization, and credit availability. 

I would say don't be afraid to utilize the equity line again.

Some areas have restrictions on mobile homes or rentals.Utilities: Ensure the land is equipped with essential utilities like water, sewer, and electricity.

3) It's been 5+ years since we've seen a S8 tenant lose their voucher for property damages, not paying their portion of the rent or utilities, or other lease violations (letting others move in with them).It's our opinion that #2 & #3 above are caused by overworked caseworkers not having the time to process the extra required paperwork, so they take the path of least resistance.4) S8 needs someone at the federal level to put more of the program online and streamline the process!