If you're only putting in some basic cosmetic upgrades, and leaving older plumbing and mechanicals otherwise, and asking a low price for the location hoping for a quick sale, then you can likely get away with leaving it.I believe that most buyers in the Girard Estates area of Philly (higher priced homes) are going to be looking for a final product that has updated wiring.

The key is always to have leverage and pay upon completion of agreed upon milestone such as end of demolition, upon successfully passing of rough inspection, upon kitchen installation, upon successful passing of final inspection, upon completion of final walk through and touch up list.You should specify these milestone in the contract under "payment schedule" so there are no surprises.Always keep a significant amount 20-30% as a final payment upon completion of final touch up list.

Not unless it is specifically agreed to, IMO, as to a "fine" per appointment missed.

This is a fine tool for cleaning out dryer vents.

There is a rough-in and a final electrical inspection here.

Doesn't a final appraisal need to be done now that the house is done?

I can't believe i didn't see the stair gap till recently, i need to be scrutinizing every area with a fine comb (this more on me for slacking/focused). 

As a final shout out, listen to Account Closed. 

Make a few calls to get me started in the right direction to make a final decision .?

I saw a punch out list somewhere to do a final walk through before making the final payment.