So the seller had roto rooter out and did they disclose the problem
before or at tme of sale?

If they didnt get a lawyer....... The seller bby NOT disclosing the
problems is responsible for ALL repair costs for anything they knew was
bad and didnt tell you.

GO GET EM!

This happened to a neighbors home the seller knew the entire main sewer
line was bad, had plumbers out frequently.

didnt disclose to buyer, sewer backed up. new owner called plumber who
already knew what was wrong since they had already given a estimate.

anyhow new owner sued old owner and won, actually it didnt go to court
sellers lawyer advised to just settle.

new owner got 10 grand to cover brand new sewer line.

YOU CAN DO IT TOO!