18 yo  bagging groceries  and 3 months of collage I did not like... got RE license.. made commission income for years before I invested.. although I did the very best thing I could do end of that first year I bought my first home in Milpitas CA...

Show up with clothes and a sleeping bag at the management office and make your self at home . tell them you have to live there until the problem is fixed .  

(paper towels, toiletries, toilet paper, trash bags if you leave a starter kit).

I have a bag full of documents that I need to supply to the tax professional so they can finish my taxes.  

Ended up with 42 bags of trash. 

That way you have zero disclaimer issues.Basically, remediation looks like this: Turn the area into a plastic bag, suit up in Tyvek, and carry all debris out in plastic bags.

I could carry it for a few years as is and look to sell and pass it along to next, but I fear I'll be stuck holding the bag.

Because if they screw up, then you're usually the one left holding the bag.

If you take the building you are required to honor the lease agreement until the lease expires.. so what kind of leases to the current tenants have..I would in your case ask the seller to have one of the apartments vacant prior to closing.. so apartment you choose is all  moved out.. you could in your purchase agreement agree to cover rent for the period the apartment is vacant until closing if that is concern of seller.. or add a clause that if you don't close you'll pay additional 3 months of rent on the apartment that was vacated so seller is not left holding the bag. 

You can have them bag the mattresses as well on their first round.