It depends. Are you doing this to be a "real" 200 pounder on any given day after June 1 or is there a specific "weigh in" day on June 1 where you need to be 200 pounds. If there is a weigh in day, then yes without a doubt you can do it. Basically you could lose 15-20 pounds in 30 days and then on May 31 you sit in a suana with trash bags on and don't drink anything. You'll lose an easy 10 pounds of water weight for you weigh in. If you want to lose 30 pounds the healthy weigh and you are 230 now, I say nope, you can't do it. But I hope for your sake you can.
Good luck tubby! 😉