They would blend in more with a darker color.

A neighborhood house appears vacant for 3-5 years according to my father-in-law, yard unkept, driveway overgrown, siding/roof peeling, window shades a mess, etc.

But I thought it was important to share some of “darker side” so newer investors can see that perfection isn’t necessary and everyone makes mistakes.

I’ll post a picture of a slab that cost $500 and $1100 to cut - this was enough for a kitchen and 2 bathrooms.Same $500 slab in another kitchen:Also, as you can see, for rentals, I’m a fan of darker colored cabinets. 

I don't want to throw shade; but you were asking for opinions.

Window Treatment: blinds, shades, curtains?

Before he seals it I would call him ASAP and get it blended better,, Yes stain will accept darker in areas but this clearly looks like it was lefton longer in areas or applied heavier in areas.. not blended in as well as it shouldDON'T delay.. you don't want it sealed and then you'll really have delays. 

It's a for sale by owner with no agents involved, the owners told me that the their previous offer was from another investor for a shade under 700K which my guess could be about 680-690K but the offer might not fall through.

Well,the interior looks lovely but,the exterior paint is wrong and it sticks out like a sore thumb.Something darker that goes with the two much taller buildings you're sandwiched between would have been better.You made some mistakes that are going to cost you like they did me too.First,you decorated the interior to please yourself as if you were going to live there,not good.Way ,way,too expensive for the neighborhood.No one is going to pay you tens of thousands extra for having nice taste in fixtures and finishes.You are also surrounded by multi family rental properties instead of lovely single family homes which is where your place belongs if you could magically move it.Honestly,you missed a golden opportunity to make some good money by not just gutting but hiring an architect and redesigning it into a triplex or quad.A good landlord business would have paid you a handsome profit for a modern designed quad with affordable and nice fixtures.Your initial asking price was way too high and the real estate agent should have talked you out of it.Now you have 161 shoppers on Zillow with only a few of them real buyers waiting you out to see how low will you go.Their buyer's agents are sensing the desperation and waiting to drop the hammer on you.I went through this same terrible thing just recently and lost 85k when the bloodbath finally was over.I am afraid you need to prepare yourself for the same thing.If I am wrong about the address,pay me no mind and good luck to you.

I chose flat so I can easily touch up without worrying about different shading/ matching.