If a renter left cheap laundry detergent behind, I use it to clean oil spills on concrete and replace the detergent with good stuff.

Next was for rebar/foundation so we could pour concrete.

Permit fees, utilities, concrete, wood, labor,grass, cleaning, the mailbox, plans, engineering, builders risk, ect. ect. 

I've been digging on this for a little while, and can't find anything concrete on where to start. 

It is always safer to use a concrete reason to deny an application, such as low credit score or not having 3X rent.I have 8 tattoos, and an 815 credit score.

Around here, house shoring companies dig around the house and use hydraulics to push concrete block or cylinders down thru the soil until they can support the weight of the house.

Thicker drywall (5/8s instead of 3/8)Stain resistant paint or at least easy to clean up paint (this may vary cause in most causes tenants put so much holes and dents in walls, the turnover for rentals usually require repainting anyways)Easy to clean back splash (less grout = less stuck dirt, so consider the size material)Countertop type (granite and marble stains and require to be polished and resealed eventually; quartz is stronger and stain resistant, but cost twice as much)For appliances, I suggest going to local appliance stores not big box stores.  

So far on the “to do list“ i have to clean grout, Install vinyl floorIng, and resurface the concrete In the front yard.

Ive googled my own sources but some seem to contradict one another and looking for something concrete. 

That's going to sound high to a lot of people, but that includes all site work - forced to concrete a big old driveway and parking area, upgrade water meter, rebuild a drainage culvert due to increased runoff, install fire sprinklers, and more.