There was water damage to the parquet wooden floor in the living room where the tiles had buckling but returned back to original state in 2-3 weeks.

That's like saying that everyone who drinks Busch Light wears a wife beater and drives a truck with a gun rack in the rear windo...wait...nevermind, bad example.In addition, I would be willing to wager that those fine citizens you witnessed this afternoon were not peddling dime bags of grass.

That being said, I did my last rehab on a 0% intro Discover card AND racked up a few hundred in cashback. 

This is not a reduced relative clause, as in, "I know a man with a wooden leg named Smith." from Mary Poppins fame.

I had to get over the feeling that every tenant is going to notice all the things i didn't improve as soon as they walk in.I recently had my triplex appraised and while doing the walk-through with the appraiser we started talking about the old wooden windows and how i wanted to get them all replaced with new vinyl windows (this is in a C neighborhood).

Rip up the wood floor from that room and patch the rest of the wooden floors with that.When done properly (and most likely all the wood was originally installed from the same batch and at same time), you will have magnificent wooden floors.Don't skimp on a refinisher--it will make all the difference!

Painted white brick (if it’s a flip), operable wooden shutters, landscaping etc.

in my opinion, since this backyard looks like it is very uneven, and the backyard is not so big, you can build a deck that is just high enough so it can clear all the uneven ground, then fill in the rest with something low maintenance like gravel.The walls you can do a wooden fence or something that would be even less expensive, you can do a bamboo fence. 

Custom Island was built, crown molding, wine rack, and trim was built around the fridge.

The house has a wooden storage shed in that back yard.