Mullins, a 6-foot-3, 295-pound defensive tackle from Wendell (N.C.) East Wake, is also considering Florida, LSU, and Nebraska.
Although he lacks a leader, Mullins says the seven aforementioned schools make up his final seven listing.
"All top seven have been there for the longest," said Mullins.
One advantage the Tar Heels have is Mullins' familiarity with the program – most importantly the coaching staff – due to the many unofficial trips he has taken over the course of the last year.
"Coach [Ken] Browning is a real good coach and good guy, and Coach [John] Bunting is too," said Mullins. "I had a chance to go down there a lot during the summer, so I got to know the coaching staff really well."
As expected with any good relationship, Browning, Mullins's recruiting coordinator, is in constant contact with Mullins and has explained to him the Tar Heels' recruiting situation.
"They said it's a big class coming in, but they still need that one piece and that's me," said Mullins. "They are talking about changing the program around and wanting me to be a part of that."
With Mullins being in Spartanburg (S.C.) all next week for the Shrine Bowl and the holidays shortly after that, his remaining two official visits will be scheduled in January with a decision being announced before the end of the month.