This will work of course because people who are smart enough to make 1/2 M are too stupid to figure out how to establish residency in nearby states while maintaining a weekend home in Md.
Punishing people for being productive has always been a great idea. That has worked so well for California, Michigan, Louisiana and so many other democratic paradises...
Pretty soon the state will only have retired people, too old to move, and dumb young people living there. What a great foundation for a tax base.