Unless you co-signed for them, how are you responsible for the debts of other adults?
If you inherited something from your mother and the creditors want a piece of that, you do not owe anything to those creditors. It is your mother's estate that owes the creditors and your mother's estate will become completely "yours" only after all the estate's debts are paid off.
You are not paying off her debts. Her estate is.
If that is not the case, you have no legal obligation to keep on paying.
AND here is the kicker...
the debtors have to affirmativly seek out the estate to make their claim on the estate.
That costs money.
Many of these collection agencies are just harrasment tigers. only bark no bite.
Most states have a one year statute of limiation on estates in order to preserve finality.
If a debt is not claime and probated it is easily time barred. UNLESSS the collection agency finds a person ignorant of their rights and has the “target” assume the other person’s debt.