portfolio recovery Santander reposessed a vehicle that was paid off two years prior Westlake Nationwide

My car was repsessed by  pra after it had been paid off two years prior 

After battling for the title of my van for 2 years with no luck I was contacted by pra recievables in june of 2013 saying I owed them 20000 on it and I was behind on my payments of 500 dollars monthly  I handed these papers over to my lawyer. She contacted the abd tgey were cooperating telling her they were going to straighten this matter out and send me the title. In September of 2013 a tow truck showed up at the house no warning no contact no notice from portfolio recovery what so ever looking for the van. Again we contacted my lawyer and again we were told theRe was a misunderstanding and they would be sending me the title. 3 months by no title no contact no letters from pra what so ever then on January 8 2014 the van was reposessed or stolen by portfolio recovery. i called the local ssheriff to report a stolen car thats when I was told it was reposessed we were not given any info on where we could get our belongings or what company had the van we then were sent a letter several weeks later that our van was being sold at a private sale  and we would be billed for what ever the balance owing would be. Oregon law states the consjmer has the right to knkw by law where the vehicle is being sold  at what time and what day and where. But no word then in may of 2014 I was sent a bill for 22000 dollars for a van that was paid off in 2011.