Need advice on a "methy" problem - fourplex deal

[Lisa S.]

Sorry to jump the forum like this with no history here, but I'm desperate for advice.

I'm under contract to buy a fourplex in salt lake city (hot market), and the inspections have been a little nightmarish. I can still get out, and am wondering if I should.

-One unit is above legal limits for meth and needs remediation. Another unit is borderline.

-Built in 1915, very old wiring in attic ($5,000+ to fix)

-150 square foot addition not on foundation ($5,000+ to fix)

-Portion of sewer line underwater, found by using a camera to inspect the line (? to fix)

Should I walk away or negotiate? How much of a discount should I get?

Thanks in advance!