The Post's Marc Fisher writes for Thursday's paper about the behind the scenes battle between the city and the Lerners about whether Nationals Park was completed on schedule, with the owners pointing to the $100,000-per-day damages owed to them according to the stadium lease agreement if construction was not finished on time. Quoting: "But nearly three weeks after the stadium played host to its first game, the Nationals were still demanding $100,000 a day because, among other items, the team offices at the new ballpark were not yet completely ready. The city conceded that the offices weren't done as soon as the ballpark itself, but sports commission chief executive Gregory O'Dell reminded the Nationals that the offices make up less than 3 percent of the stadium project. He called that delay a "minor inconvenience" and noted that the District allowed the team to stay at its old RFK Stadium offices rent-free."