The three-star signal-caller is excited about his decision.
"It feels really good to be committed to Maryland," said the 6-foot-1, 192-pound DeSue. "It's great to have a place to call home for the next four years.
"The combination of academics and football is second to none. I can play competitive football and get a great education."
What will he bring to Maryland?
"I think I'll bring good decision making," DeSue said. "Everyone makes mistakes, but I'll have a lot of athletes around me and that will be a big help. I also throw the ball well and can make plays with my feet."
His relationship with the coaching staff played a pivotal role in his commitment.
"I'm close with (wide receivers) coach (Chris) Beatty. He's like a legendary coach around Virginia Beach and I've known him for a long time. He was honest with me throughout the entire process. He's not only a coach, but a friend.
"I also have a great relationship with (offensive coordinator) coach (Walt) Bell. I like how devoted he is to his job -- he has a mattress in his office. He's upbeat, too, and a lot like my high school coach. He also gets along really well with his quarterbacks."
The Bishop Sullivan standout is excited about playing for head coach D.J. Durkin.
"With Maryland being in the Big Ten, I think coach Durkin is the perfect match," DeSue said. "He's going to recruit the best guys every year and he's dedicated to winning. His goal every season is to win a Big Ten championship.
"There's a lot of young players in the program and he's putting together something special and I want to be a part of that."
As a junior, DeSue completed 109-of-192 passes (57 percent) for 1,600 yards and 15 touchdowns. He also carried the ball 75 times for 243 yards and two more scores.