1) Ike repudiated his inheritance for many reasons. The catalyst of this is Sam Fathers. After Ike's parents died he was basically taken under the advisement of Sam Fathers he built Ike's belief foundation. He taught Ike to respect the land and that nobody could own it, also that slavery was evil. From this we can see why Ike repudiated the land.
             Ike saw the land as evil and tainted because of what happened on it. After he read the ledgers he could deduce that LQCM had committed incest and miscegenation. This he saw as a grave sin and that there was no chance in cleansing the land. Also, he still had the belief (which carried over from Sam Fathers) that land could not be owned since God created it for all beings therefore the land belonged to everyone. And of course there is the obviousness that generations of slaves worked and died on that plantation and the sin of bondage could not be cleansed from the land.
             Ike's repudiation wasn't a trivial event, it influenced another parts of the novel. For example in the story "Go down, Moses" Samuel Beauchamp gets kicked off the plantation by Carothers Edmonds because he is caught stealing and he eventually gets killed. Aunt Mollie blames Carothers for doing this because she thinks that because of him kicking him out into the world by himself eventually brought Samuel's demise. This might of been different if Ike would of not given up the land to Cass. Another aspect it impacts his Ike's marriage. Ike wanted to have a child but his wife would only cooperate if he got the land back and he refused so he essentially lived a bachelor forever.
             2) Aunt Molly places an essential role in the novel. First of all she acts as a bridge between the black and white sides of the family. She has the respect of the white side, such as Roth because she basically raised him and she also is connected to the black side in that she is married to Lucas and partakes in his heritage.
             Aunt Molly acts as a or...