After a year of this when I felt I had a good comprehension and superiors agreed, I  polished my resume, contacted recruiters and told them what I was looking for and my low dollar was $25 an hour. 

They can block it by putting something in front of it or a piece of plywood held in place by a piece of furniture, but I wouldn't nail boards to the  fireplace.

@Shaun Weekes nailed it.

@Marcus Auerbach Water bills were a huge deciding factor when I hired a manager, as it sits I think 50-70% of the managements fees are covered by water bills I would probably get otherwise nailed with. 

A while back I was doing some work and after locating the "stud" with an electronic stud finder, I commenced to shoot a nail right through the drain pipe lol.

I will be providing all materials, e.g. underlayment, shingles, nails, etc., the dumpster and pulling the permit. 

I have some basic models I've built but I need something a bit more polished for investor collateral.

Be sure and have these things nailed down before you do your next deal!

Should I deduct from the deposit minor repairs to the sheetrock from screws, tv mount, and nails?

replace it would be my adviceby your description there is nothing salvageable.Plexiglass big no nodoes not do well with energy UV visibility etcno balance mech design failureslides freely in frame safety issue sound like if open it can come down rather quickly and hurt an occupantThe only repair I would recommend would be nailing it shut until you can afford a windowwindows have come down in price over the years and there reasonable options out there