Close off that breezeway with windows/sliding doors and make it another room... assuming there's a cement floor.

I know people who have done this only to find that the pissed-off homeowners (at the bank) last horrah was to destroy the house including pouring cement down drains, stealing stives, cutting up the trusses/joists with a power saw, stealing the copper from the electrical, dumping horse crap in the house, etc.

If I have cement on the sides of the building, what do you recommend putting there to fill in the negative grading and make it positive? 

But I did all new appliances, granite countertops everywhere, stained cement flooring, new doors, electrical box, recessed lighting, big backyard shed, gutters, paver patio etc...you get the idea

Not sure yet whether we should do a cement/foundation job for the porch or just re-do the porch entirely.Our adventure here is going to allow us to go through the entire process of flipping/rehabbing our house, but... without ANY of the thorough experience that some veterans may have here.

I bought one with a cement side yard 35ft by 60ft.

Sounds like cement board or durock.

You and your dumb friends are drinking Captain and Cokes out of them and Chad drops one on the cement floor and it shatters.Then you two get a divorce, why should she have to lose that because Chad has butter fingers?

They use it in hospitals and dog kennels, and nursing homes for odors.Also tired on cement using a hydrogen peroxide rinse.. for cat smells.. that was tricky, bought it at beauty salon in gallon jugs.. 

This inexpensive gift may pay dividends later when you or your tenants have to pile your bins a mile high to get rid of waste/debris or ignore that block of cement in your trash can..Apparently, these are the most important people in my real estate life..