The terms of the trust should lay out what happens if a beneficiary passes away before the trust creator.

How will I get a probate? To get my name on a house that was my uncles, but he is passed away.?

Beverly is correct. I would also add that there is a shortened probate process in Oklahoma that might be cheaper, but you have to meet certain...

How do I find out if my deceased father has any assets?

First, I'm sorry for your loss. Unfortunately there isn't a magical way to figure out what assets your father owned. Opening a probate is a good...