There are normal levels and above normal levels, different strains of mold, and a difference between mold and mildew.

That could really strain the friendship.If you're going to live in it, you'd qualify for owner-occupied financing.

If you always claim a loss, your income will put a strain on how much they will lend to you.

Based on these other thoughts...1. replace a window pane - expense. replace entire house of windows - capital2. replace a part in a heating system - expense.

I think you'll come out ahead putting in standard double-pane windows and including the removable fabric style protective coverings when you sell.

Trying to buy a place in the Bay Area that just hit the market less than a week ago and asking for contingencies and price reductions is comparable to a fly constantly hitting a window pane trying to fly out.

One plus would be the glass may be acquired as scrap as offcuts being we are using small panes! 

There may be others out there, but your rotating panel is by far my favorite.

Even then having things in writing up front doesn't preclude a strained relationship later.I really dislike the option of investing somewhere you don't know.That brings me to your third option, mostly by default, even though it means waiting.

I do have a small access panel I took down to get access to a pipe we can also put back up and that may not hep a ton but a bit."