The representative gave few details, the Los Angeles Times reported. He said Uchitel hopes to resolve the divorce "amicably, quickly and quietly."
The celebrity website TMZ reported Uchitel, in her divorce filing Monday, alleged "cruel and inhuman treatment."
Uchitel and Hahn married quietly in Las Vegas in 2011 and have a year-old daughter, Wyatt. Uchitel is seeking custody of Wyatt and child support from Hahn, who is now an insurance executive.
On Tuesday, she tweeted from New York she was having a "beautiful day" in Central Park with her daughter, the Times said.
An alumni of "Celebrity Rehab with Dr. Drew" and correspondent for Extra, Uchitel is better known for her troubled romantic history. She was engaged to an investment banker killed in the Sept. 11, 2001, attack on the World Trade Center and also had an affair with actor David Boreanaz, currently starring in "Bones" and married to someone else.