He is her brother. Hard to connect the dots, but if you look at this link, Columbia Law School Award ,Bruce is presenting brother Michael the award:
Bruce Ratner '70, president and CEO of Forest City Ratner, introduced his brother Michael and proudly presented him the Medal for Excellence.This profile of Bruce Ratner mentions him as Ellen's brother and the president of Forest City: NY Sun Article Description
For someone whose daughter Elizabeth is a reporter at the New York Observer and whose sister Ellen is a reporter for Fox News,he keeps a low profile with the press, declining requests to be interviewed for this article.
so-called civil rights and Constitutional attorney Michael Ratner.
Any relation to Elaine Ratner, noted Rat shill and Clinton apologist?
Brother . . .