Jun 19, 2016
"I can't get rid of her." These people are crooks selling fake products. But getting rid of her should be easy. If she sold your father in law a product, there must be an invoice or something with the company name and address on it. Send them a certified, return receipt letter telling them to stop calling you. Then if they continue, sue them for TCPA violations (which you already have if you were listed on the DNC).
Also report them to the FTC and your State AG.
https://complaints.donotcall.gov/complaint/complaintcheck.aspx
Also file a complaint with your State Attorney General's office.
List of State AG’s offices: http://consumerfraudreporting.org/stateattorneygenerallist.php