On my last purchase, it was a private sale.
I live outside of New Orleans, seller lived in Charleston. I did a weekend trip to inspect three boats in NC & SC. Made an offer on the boat in Charleston months later. Purchase agreement was executed pending satisfactory survey & sea trial. I forwarded a personal check in the amount of $1,000. to the seller and he cashed it. Survey in Charleston was scheduled for 3 weeks later. After the survey & sea trial on a Friday morning, the boat was left in the ship yard on the hard. On Friday afternoon, we met with a notary and signed the bill of sale with stipulation that all funds would be wired to the seller's ship mortgage company on Monday AM. The payoff amount that the seller owed the mortgage company above and beyond the sale price was detailed in the bill of sale. The seller would not allow the boat to shipped from the yard until all funds cleared.
The only difficult aspect of the transaction was for me to verify the outstanding balance of the loan amount from the seller's lender. With all of the privacy laws, the information isn't readily available. Even after the owner issued a letter to the lender allowing me to verify the amount, the lender was reluctant to give me the information. Finally, they released the information as I informed them that the funds were going to be wired to the lender and not the seller. The lender furnished me with the routing number that was verified by my bank. Of course, I was not completely "protected" as the seller owed approximately $10,000 to the ships mortgage company above the sale price. Might have taken some doing to get my funds back from the lender if the seller didn't pay off the loan. After all was done, the owner did what he was supposed to do and I did what I needed to do. The loan company verified to me that the loan was paid off in full, the owner notified the boat yard that the boat could be released, and I paid the yard to prep the boat for shipping, and I arranged for the shipment. All went well; however, it did take quite a bit of work to make it happen. Also, it requires a bit of trust on the part of the seller & buyer for the transaction to be completed. A few years ago, Boats US actually offered a 3rd party escrow service to ensure that all of the funds are dispersed properly & a bill of sale issued. Not sure if they still offer the service.