Kevin Jonas -- Have I Got a Super Bowl Deal For You!

Kevin Jonas -- in an effort to find new ways to make a buck -- has a baronial way of making a quick killing ... renting out his sprawling New Jersey manor and throwing in Super Bowl tickets.

Kevin's crib is 36 minutes from the stadium so ... for the convenience and the amenities he wants $20K a night. He's throwing in 4 tickets to the big game.

Of course ... WHERE you sit in MetLife Stadium is critical. Kevin says the seats are good ... but he's not specific.

Jonas won't be spending the weekend at a shelter. He and his wife have a new house close by.