Can God redeem a man that He did not create?
No such man exists that God did not create,
Therefore, God can redeem all men.
If it were theoreticaly possible that a person be created without God, which it is not under the Christian understanding, God could still redeem that person, as He is omnipotent. Because redemption means to purchas back, and because there is no limmits to God's power or love, there is no price He cannot pay. Therefore, were it possible to be created without God, God could still redeem such a person.