I got my 1968 Firebird in a three way swap. The car I swapped was a 1968 Firebird 400 4/speed car that I got as a parts car. Luckily the guy I bought it from was a newly minted NYPD cop and I knew where to find him. He had signed the regi over to me but he was fine with doing the notarized paper work to re-sign it over to my buddy. My car, the convertible, came from a girl who had signed it over to the third guy in the deal. That was a bigger problem. She was unavailable, and it took me a long time to work with DMV to get the car in my name. The final step was to get it insured, and registered, in my name, and getting the regi with my name on it. [prior to 1972, the regi was transferable] My insurance company at the time was cool with insuring the car for one day so I could get it registered. I cancelled it the next day, turned in the plates, but it was legally mine now.
That is why I prefer getting a clean title, no signatures, and I fill out the tax form and title as needed. You can make the selling price what you want, the signatures match, and all is copacetic.