A Danville businessman who had worked to renovate dilapidated Antioch buildings pleaded guilty to two conspiracy charges as part of a plea agreement with the U.S. Attorney's office, court records show. Anthony Keslinke, 47, was arrested in February 2014 and ultimately charged with 12 counts of fraud, money laundering, and conspiracy, all stemming from a period between February 2011 and March 2014, during which time prosecutors say Keslinke falsified documents to "short sell" his own East Bay properties at a profit, and accepted a total of $550,000 from an undercover federal agent posing as a drug dealer, court records show.