So How Far Should Our Forgiveness Go?

[Hobie]

We know Christs answer when asked, and even to even before giving gifts to God before the altar and reconcile with their brother, to say nothing of what He declared to Zacchaeus. So my question is, if someone is stealing from you or taking what rightly should be yours, lets say your brother takes over your elderly fathers accounts and drains them before he even dies, do we just forgive and let it go, as your parents fade away, no longer able to understand the injustice being done them? What should a Christian do to forgive and right such a wrong and how far should he go, just forgive and forget, or what?