I would stud pocket in another slider option at the same height to match the existing units...If the windows are in good working order I would simply paint and possibly add maintenance free PVC trim.

On the other hand, I'm living in a gentrifying area where it has it's own unique challenges, not in Manayunk with a pool :) I know this doesn't answer your question about the numbers but hopefully it'll get you thinking bigger picture so you're not painted into a corner when you're ready to move out.

Low-income neighborhood and lower price point has attracted FHA applicants ... and all the FHA hassle that goes with it. 2 buyers fell out due to finances, 1 buyer backed out after the 25 page FHA inspection painted a picture of a house that deserves demolition.

I recommend everyone read this, there's data against hot tubs, sump pumps draining into septic systems and yes even water from latex and other paint brushes going into the septic.

I have done lots of painting, trim work, cabinet installing, etc so far.

It is not always the condition of the carpet or paint that dictate whether I replace or paint a house on a turnover. 

They provided paint for an accent wall but my guys painted it on my time. 

The tool is in the paint section.

The house had brand new paint and every thing was functional and very clean at the time of rental.

Now, they have asked us to pay for paint so they can repaint the living room ("the current color was a crappy job", they demand a backsplash in the kitchen....I understand I have repaired more often than what tenants would like but is this ridiculous?