I don't think it will be a deal killer but the sellers will have to pay for treatment.

It is visually apparent that the entire roof was poorly done.  

Having trouble visualizing the kitchen remodel here.

I look at their pictures for visual clues, such as clutter and messes.

I have a background in wastewater treatment, I also have some experience in multi level business. 

Got the termite treatment done with some help, carpets removed, bathroom demoed, measured for windows and doors, working on putting a complete bid package together for Home Depot (If you spend more than $1500, you can request them to give you a bid price which is usually a bit cheaper). 

Having the same flooring in the kitchen is visually cohesive, good in the small space.

The most effective way is heat treatment but not something I can do in an apt.

Don't show studs, I need the walls in place to better visualize potential finish.

When a specific infestation is discovered a more intense treatment will need to be done to bring it under control.