4. If a person is living with a sin that they continue to commit and are not remorseful and have not asked God to forgive…has God already forgiven that person?
If that person is a Christian, yes. All our sin is forgiven in Christ on the Cross. We don't experience the joy of fellowship with God when we persist in sin and refuse to confess those sins. However, our STATUS before the Father is the same.
If that person is NOT a Christian, then all their sins were on Christ objectively, but they have not subjectively experienced that forgiveness, since they have not repented and confessed Christ. Conversion launches reconciliation.