My Client was able to close on a home 2 blocks from Green Lake last weekend by doing just that.

I was told that because of the two species of wood you can't sand and refinish becuase they will be different colors once stained. 

I own a SFH about 10 blocks east from SJSU in downtown san jose.

It does not matter location, paint color, ect.

I have come up with the following options so far:-install shower with glass block window with tile surround and bath vent fan (no idea as to how waterproof this may be)-demo old tub, wall off window, install prefab tub/shower combo and bath vent fan -reframe window to be much smaller and higher on the wall, leave existing tub, install tile surround and plumbing for shower-leave as is and hope tenants don't care about not having a showerIn most of these cases it seems to really just boil down to whether I want to have a window that can be opened to alleviate wet room moisture, or install a vent fan. 

Anyone have any experience in changing the color of the existing asphalt roof shingles without actually replacing them?

I never ever put drain cleaner down my drains.No, I don't snake between tenants, but I do run the water to check the faucets for drips and to make sure the drains are flowing like they should.I always fish the hair out of the tub and shower drains with a zip-it while I am in the house getting it ready to show.When a tenant calls me about a blocked drain, I will use a hose and bladder through the roof vent before I snake.

I don't know much about your business, but my suspicion is that you have a bunch of low-end rentals and that is coloring your perspective.

We have cleaned the walls twice with TSP and they still look terrible, hopefully the primer will cover up the brown colors and the smells.I also managed to get everything for the house ordered this weekend from door knobs, to flooring, to shingles, to bath tubs...

The area is mostly post-war ranches with some brick, some steel siding, some a sort of glazed concrete block I've not seen other places, and some stucco.