Giving yourself all the money from a heist is one way, another is to challenge a person (donor) to an impromptu race, put up a very large prize for the winner, then win.
You can do heist/missions then after the heist/mission is over transfer part/all of your winnings to that player. But as for just straight up handing someone money, sadly not.
Giving yourself all the money from a heist is one way, another is to challenge a person (donor) to an impromptu race, put up a very large prize for the winner, then win.