A 31-year-old rule nicknamed the “anti-chump clause” makes the Ravens a significant, if silent, party to the Orioles’ ongoing lease negotiations by mandating that the state can’t treat one team better than the other. Under the parity clause, the state is like a parent legally bound to love each of its children the same. “It guarantees that we would be treated the same in future dealings, that if they’re going to do something special for the football team, they do something equally special for the baseball team,” said Larry Lucchino, who helped draft the clause in 1992 as Orioles president and CEO. At the time, Maryland was hotly pursuing an NFL club after the Colts abruptly left for Indianapolis in 1984.