The biggest issue is with the adhesive containing asbestos and the difficulty removing that.

Now I have not used what is offered below, but I did think about it and it could at least provide a cheaper DIY alternative to resnaking. https://www.amazon.com/ROOTX-Intrusion-Solution-Container-Funnel/dp/B00FPRQ3A4?

The expansive top-floor master retreat contains a fireside sitting area and a master bathroom that leads to a huge wardrobe featuring shoe display cubbies and rows of closet space.

You are seeing the reality that the world contains people who are crazy, selfish, unreasonable, mean and have far too much free time.

For information that is contained only in documents, the disclosing party may request that the receiving party destroy the information.

Have a professional do it under containment (plastic containing walls, air scrubbers, etc.) and you can be assured that it is not going to get you sued in the future. 

WITNESSETH: That Seller, in consideration of the payments, covenants, agreements and conditions herein contained which on the part of the Buyer are to be made, done and performed, has this day sold, upon the conditions hereinafter recited, to the Buyer the real property legally described as: SUBJECT PROPERTY: ________________________________________________________, hereinafter the property.

Let me see, I guess we need a new promissory note for some of you to use, so here it is, at least the part you need to modify.I (We) the undersigned as borrower(s) do promise to pay, subcet to the terms herein contained, to the Holder the principal sum of ____________________($_________) Dollars.....etc.Borrower agrees to make payments in the amount of ____________ beginning on the first day of ___________ and like date thereafter, based soley on the borrower(s) ability and desire to pay same, until the outstanding principal is fully paid or at such time as may be convient for borrower(s).In the event of default by borrower(s), the assignment of rents made in connection with this obligation shall only be payable at the option of the borrower(s).

At least it will be contained when it leaks ;)

The loan also contained a substitution of guarantee clause, as long as the substitute guarantor had a met a minimum credit score, which the builder/investor did.