How are sales transactions typically done these days?

[YankeeClipper]

Thanks all.

I did see that AOPA page before, but it doesn't seem to lay out steps so much as point to forms involved.

Once the seller has been paid, and it's time to go home:

It's my understanding currently, that to take the aircraft home, you need only to have a bill of sale filled out (not submitted to any other party/agency at this point), and the "back" of the registration filled out with the buyer's name and address, and the seller's signature (also not sent or copied to any other party at this time). Simply filling out and holding onto the above two documents makes your possession and transport home of said aircraft 100% legal. Is that correct?