Yes, you'll need the Title for the trailer to properly sell the trailer. Without the Title the buyer is screwed. You need to obtain a Duplicate Title for the trailer before you can LEGALLY sell it. Go to the Licensing Agency to apply for a Duplicate Title and pay the fees.you should have within 10 days to 1 month depending on the agency.You'll want everything in order for a smooth transition of ownership.ithout the Title the buyer is screwed. You need to obtain a Duplicate Title for the trailer before you can LEGALLY sell it. Go to the Licensing Agency to apply for a Duplicate Title and pay the fees.