Stop the leaks, install window vents and or humidifier I have done dozens of jobs like this. 

@Chris Combado, Publication 523 from the IRS lays out the requirements to extend that window for selling your primary residence. 

Find abandoned looking properties and look in windows or ?

This is the simplest method, but it also means your tenants are more likely to abuse the utilities by leaving windows open with the heat or A/C running, leaving lights on, ignoring the toilet that constantly flushes on its own, etc.3.

If the new bedroom has 3 outlets,  a windows and a  closet all that are done correctly. 

You are bidding in the blind based on what you can see from the outside of the house, and (if vacant) what you can see sticking you nose up against a window (usually).  

@Jaron Walling, You know when things start to slide downhill? 

Lazy River, water slides, gym, restaurant/ bar, etc).Themed rooms - make the bedrooms attractive by theming them with characters (Disney, Harry Potter, Star Wars, etc).Games Room - these are often located in a garage conversion or a left area.  

According to the inspection, a replacement job must be completed on the roof, windows, doors, siding, soffits, back deck, and front porch, to name a few (which one should I even start with?).

The last thing the home needs to qualify for section 8 is new windows and a fire alarm.