I only do "off market" non MLS motivated seller purchases and I am kept very busy in AZ WA CA TX and I will be adding OK and ID because I like the markets there.

He can do most of the work but for example if a bathroom needs to be added he would need to subcontract a plumber to do the major work like plumbing a room for water and sewer.

He told me that he was very interested in buying the land again and I told him I would check my contract and get back with him.Now I am stuck, he is clearly subleasing the property so I can't use the same contract I used before which clearly does not allow subleasing the land.Currently, he is collecting $200 rent from the land only, someone else owns the trailer.A few months later I get a bill in the mail for over 1 year of water and garbage that will be added to my next real estate bill. 

My problem is, before I sign anything, those two addendum need to be added to the contract: right of assignment, and right to resale immediately afterwards -- even if it is just a bid offer.

I believe those would just be added to your purchase expenses to increase your basis in the properties when you sell them.  

@Deborah Repaskey we work with SmartMove, however check with Rentprep if the credit report could be added to the existing report you already have.  

So for DTI would $1400 be added to debt and $975 ($1300 x .75) be added to income, or would it be $425($1400-$975) added to debt for DTI purposes?

Those rules indicate that if the property is rehabbed before being put into service, the rehab expenses should be added to the basis.  

What additional value can be added so that you close more deals and make your clients happy?

During the flip we will be adding 1400-1700 a month to our current bills which is all our extra cash in our budget.