In my market (lehigh valley PA) I can get this done for around 5k or less including the units, materials and labor.

You will want to perform a proper dry out of all materials and replace as needed, treat the area and have the lid put back together of the downstairs unit.

You can reduce this risk by purchasing materials and then paying the contractor in increments.

Shazam me taller Uncle Sam.....

In Georgia my average materials cost on a new roof is $2,850.

This is what I got from the seller.Remodeling: No remodeling has been done recently but is still in good condition and almost like new: a new 50-year metal roof; new central air and heat; new cabinets, sinks, etc., in the kitchen and baths; new flooring; a new driveway.  

Many insurers have started slipping in language that excludes certain coverages on roofing material. 

They look like they are mostly metal.

I am very handy so would do any upgrades and he would pay for materials.

Although I rarely watch any of the gurus promotionial materials these days, the 40k flip program caught my attention enough to watch the pitch, especially when I saw him mentioning N.E.