You should notify your attorney and the trustee. The sale will be contingent upon the trustee's approval. On that basis, you should also notify...

My husband was not given any custody or visitation rights for his children in the divorce. He did not have legal representation

Yes. Your husband can exercise his parental right to object to the adoption. He might also consider retaining legal counsel to handle that matter.

Was there an invasion of privacy if a cop told someone about my record?

No invasion of privacy in this instance. Your arrest record is public.

Will a cease communication letter usually prompt a debt collector/creditor to initiate a lawsuit or simply sell the debt?

A cease communication letter will stop communication from the creditor or collector, which can be helpful if your feel as though you are being...