Kelly and members of his staff also have been questioned by FBI agents, sources said.
Chris Wright's attorney, Lisa Mathewson, refused to say yesterday if he had spoken to the FBI.
"I would say that both the government and the defense are still developing the facts, and there has been no formal accusation of wrongdoing," said Mathewson, adding that Wright's relationship with Chawla and his brother, Ravinder, a real-estate developer, was completely professional.
"Chris didn't do anything for the developers that wouldn't fall under the category of typical constituent services," she said.
Mathewson declined to discuss the information that Marcianne Wright said she had provided to the FBI.
Kelly this week dismissed the federal probe as "much ado about nothing, probably."
Marcianne Wright said that her husband told her he was helping Hardeep Chawla buy city-owned land and that he bragged about the real-estate commissions he would make on the deals.
Wright said she had gotten the impression that Kelly didn't know much about what Wright was doing for Chawla.
Chris Wright is a licensed real-estate agent who worked briefly at Coldwell Banker Realty Corp. Associates in Center City.
Lynette DuFon, a vice president in that office, said FBI agents visited last summer with a subpoena for documents relating to Chris Wright's work there. The office had little to offer them.
"He really didn't do much business here," DuFon said. "We never paid him a dime."
Andrew Teitelman, an attorney who represents the Chawla brothers and serves as Kelly's campaign treasurer, said Wright had brought prospective buyers to a Center City site being developed by Ravinder Chawla but no deal was ever consummated.