HaLeiVi
Nope
I saw from the Ksav sofer, Noam Elimelech and others that you can’t bribe Hashem and you can’t do wrong things and just say oh Ill give Tzeddaka and that will just wash it all away.
Also, although its a great thing to have a Tzaddik daven for you I heard bsheim I think it was the Chofetz chaim and others said it as well that a persons own Tefillos for himself are more effective than even a Tzaddik Davening for him.