A lot of people don’t realize that Mitt Romney’s father didn’t really help him get started in business and that when he passed away Mitt was already successful and gave the inheritence to his church.
We know that a sizable chunk of the money from his inheritance that was shared with his siblings, was put back into the cult's University in Salt Lake city, but we have never see any other figures than that.
I don't think we know how much was inherited, nor how it was used, kept, or dispersed.
Mitt was 31 years old when he got his first job. His parents supported him and his wife and family till then. It was their money and they had a right to do what they wanted with it. He did not pull himself up by his bootstraps. As far as him not inheriting from his parents I am sure like many wealthy people their estate was planned to limit their tax liability. There is nothing wrong with doing that. Mitt says he was not handed his success but he was handed the money to attain his success. But many people are given the same financial support and do not succeed.