A Silver Spring man pleaded guilty in federal court yesterday to making a false statement in a government document in connection with obtaining federal mortgage insurance.

He became the 14th person to be convicted of wrongdoing in a wide-ranging federal investigation into the local real estate industry, according to the U.S. attorney's office.

Charles Nicholas Kalcounos, 44, director of the Freedom of Information and Privacy Office of the federal Small Business Administration, pleaded guilty before U.S. District Judge Harold H. Greene.

In pleading guilty, Kalcounos, of 2820 Vixen Lane, acknowledged that in May 1983, he signed a statement that went to the U.S. Department of Housing and Urban Development and claimed that he intended to occupy and pay the mortgage on a building in Southeast, according to the U.S. attorney's office. This was a prerequisite to obtaining the mortgage insurance, but Kalcounos did not intend to do either, according to documents filed by the U.S. attorney's office.

According to the documents, Kalcounos received $2,000 from two others, who previously pleaded guilty in the conspiracy to defraud the government, and later received $5,000 to persuade three other persons to enter into similar transactions.