Casey Margenau

Nathaniel Casey Margenau is a McLean, Virginia real estate broker and owner of Margenau & Associates who from 1999-2003 was the top producing ReMax real estate agent in the world. He is also a former board member of The John F. Kennedy Center for the Performing Arts appointed by President George W. Bush..

Margenau has a reputation as an angel investor buying the Oasis Winery out of bankruptcy for Tareq Salahi and 80 acres in Bealeton that he rents back to a church for a nominal sum to run a program for at-risk youths.

Margenau's real estate license was put on probation for two years from February 3, 2009, and he was fined $2,800 by the Virginia Real Estate Board and ordered to attend ethics classes. The board charged him with unworthiness and incompetence.

The charges included that Margenau, without the consent of the owners, was renting out property that he was supposed to be selling.