Hi Hive account@stimialiti ! It's been done several times. See references :)

I send the master password to the new owner, and he then change it. I no longer have access to it.

Ask Hive account@trumpman and Hive account@christosthegreek. They have bought from me. Also Hive account@movingman has received master password from me.

Please don't spread lies about how Steemit accounts cannot be sold. That is simply not true. Once a master password is in your posession, you can change it whenever you want and my OLD password is then irrelevant.