Levin repaid the credit Friday, Chambers said, after being contacted by Roll Call. "Since Mr. Levin was not residing in the property for the full year and it is not his `principal residence,' Mr. Levin has written a check of $690 to the County and clarified and confirmed once again to them that the correct classification of the Morgan Drive property is `Not a Principal Residence,'" Chambers wrote in an e-mail.

Chambers referred to public records maintained by Montgomery County, which indicate the Chevy Chase home is a principal residence. Property records available from a Maryland state Web site indicate the property is not used as a principal residence. Montgomery County property tax records dating to 1999 show that Levin's home has changed classifications -- principal or not principal -- four times.

Chambers said the property was designated as a principal residence in 2009, after Levin's attorneys submitted a revised deed to the county. "It appears that when Mr. Levin's lawyers submitted a deed to the County in April 9, 2009 that removed Mrs. Levin's name from the deed and transferred Mrs. Levin's share into a trust the County mistakenly changed the record on the property to `principal' residence without request from or notification to Mr. Levin," Chambers wrote. She also said that a change-of-address form Levin submitted after he moved to the Silver Spring condo prompted another change to "not a principal residence" in January 2010.