Ply gem seems to have a better reputation, warranty, and thicker frames.

Primer Paint with Kilz, then put a coat of paint.

Due to various factors like being built with reinforced concrete (pretty much the only capx is waterproof coating of the flat roof), and more respectful tenants, buildings here are underwritten to about 20-30% expense ratio.

It took 3 coats of Kilz in every room just to get the stains to the point where we could apply regular paint.

Plastic coated cable works well.If the rope isn't on the window you'll need to pull off one side of the sash and pull the window out (lower part of a double hung) and screw in to attach the rope.Put the weights on so that in the full down position the weights are just below the opening at the roller wheel

New kitchen/appliances/kitchen floor, fresh paint throughout, ceiling and trim work repairs, replaced galvanized plumbing, new hot water heater, new garage door opener, new carpet, new interior door handles, hardwood floors buff and coated, and various city required repairs.

I would tsp-> sand -> oil prime -> 2 or 3 light coats on that vanity just because it last a humid room.

If some of the sidewalk has settled, but is otherwise in good condition, there are alternatives to a cheap and sloppy top coat level or a costly full replacement.  

I would do the LVL on the entry & cheap carpet elsewhere BUT go with the thicker more expensive padding & it will feel plush.We have found most dislike the orange colored floor look & have been using the muted grey tones similar to barn board etc. 

I know I will need assistance coming up with the few thousand it takes to replace carpet, or throw on a new coat of paint, or to do minor repairs.