You will want to chemically treat the studs and wall behind each piece of drywall to kill the remaining spores and make sure the walls are completely dry before any is put back up. 

Late May through late September is bone dry. 

I wouldnt assume there would be much mold because it is a dry environment, but possibly do a once over with bleach, fan and air it out for a few days, fresh coat of paint, and call it good.  

I have my septic permit, for ADU, just waiting for ground to dry out enough.

Plus, holding more of your own cash in your account leaves dry powder in the event that another desireable deal comes along

Within 5 hour after the leak, this is being done, and there are fans blowing the area to dry it out.

There is no exit strategy when the market dries up.  

It’s possible the full sun exposure heats them just enough to dry the moisture before you notice it.I’d also recommend opening the walls below the window you know has water.

Basically, instead of keeping a sizeable dry powder balance, you use that money to paydown the 1st lien HELOC.

Those people will not have my sympathy when the water runs dry.