"I've got offers from Penn State, Maryland, Virginia, Stanford, Wake Forest, North Carolina State, and Kansas State," said Havenstein. "I haven't received the actual letter from Wake Forest, but they told me it was coming. All of the others have sent offer letters.
"Northwestern just came by my school [on Tuesday]. Virginia, NC State, Maryland, West Virginia, Syracuse, and Wisconsin have also been by."
Checking in at 6-foot-7 and 340 pounds, Havenstein is rated a three-star prospect and the No. 28 offensive tackle in the country by Scout.com. He was named first-team All-Conference, All-Area, All-Met and All State as a junior and carries a 3.85 GPA in the classroom.
"Robby is the most complete linemen I've coached in my 23 year career," said Linganore head coach Rick Conner. "He has it all... size, power, agility, leadership and intelligence. For a young man in only his third season of football, Rob made all of the blocks. Now as a junior he has become one of the top linemen in Maryland and on the east coast.
"He's great on pass protection, a wall when down blocking, gets to the next level at linebacker, and pulls with authority. You name it, Rob can do it. Simply put, Robby is a coach's dream. We ran for 4000 yards 56 rushing TD's and most of it behind #70."
"Obviously I'm a big guy and colleges like that, but I think I have pretty good feet for a big fella," said Havenstein. "I've played basketball all my life and I think that helps with my footwork. I still need to work on getting faster, but I think they like my athleticism.
"I also need to work on my explosiveness out of my stance, quickness getting to blocks, and finishing blocks."
Havenstein has already visited Penn State, Maryland, and Virginia, and hopes to visit a couple more schools this summer.
"There are some schools I still need to visit," he said. "I want to go down and visit North Carolina State. They came up and talked to my coach, and it seems like a great place to visit... and probably Wake Forest."
NC State recently offered Havenstein and teammate Zach Zwinak, the nation's top fullback.
"They came by my school and watched our film," said Havenstein. "After that I got the offer letter from them. I don't know much about them yet, but I would like to know more.
"I know they have a great class coming in, and they have a program that is on the rise. They came on strong at the end of the year... I do know that. I won't know more about them until I get down and see them."
Don't expect a quick decision from Havenstein. He remains wide open until he can visit more schools.
"Right now I'm just keeping all of my options open," he said. "I don't have a timeframe, but I'll probably start narrowing down my schools over the summer.
"Probably the No. 1 thing for me is making sure I graduate. I want to go to a place where I will graduate, and I also want to know that I'll get the chance to play and have a legitimate shot at making it to the NFL."