Firstly I would never win the lottery or get such an inheritance, so I would assume I got the money by some other means like contributions or grants. So the first $50 million I would blow on things like sports cars and Vegas and hookers and coke. So that leaves $100 million. Then I'd do the following:
1. Make THE best JW documentary series ever. Budget $10 million. (I would embezzle $40 million and write it off as part of the series budget.)
Ok so that leaves $50 million to finish the job.
2. I would start a lobby group to have US congressional hearings on the child abuse policies of Jehovah's Witnesses. As a secondary goal of the lobby group I would push for the annual public disclosure of all Church group financial statements within the US. I would use $40 million for the job and embezzle another $10 million.
3. With the second $50 million I stole I would buy Beth Sarim, booz it up and have steak and shrimp bbq's every day. So everybody would be happy, including me.