"He can make it as early as they give him the opportunity," Beach said.
"He's an exceptional player and a great kid. He's also a phenomenal person outside of football. When he gets the opportunity, he can take it to wherever he wants it as long as he keeps a level head and works hard.
"The sky is the limit for him."
Lee joins Land O' Lakes quarterback Drew Weatherford on the Seminoles' recruiting list, which becomes official on National Signing Day, Wednesday Feb. 4.
Lee's announcement Sunday could impact the decision of two-sport standout Cornelius Ingram of Hawthorne. Ingram, an exceptional quarterback as well as basketball player, is expected to decide between Florida and FSU.
Seabreeze assistant coach Thad Busby, a former starting quarterback at FSU who finished with 5,916 passing yard, also believes Lee has the athletic ability to compete for the starter's role. However, he added the opportunity to learn behind a seasoned starter also can be a valuable learning tool.
""It would be good for him to learn and it's helped the guys ahead of him,'' Busby said.
"It worked for Rix, it worked for Charlie Ward, it helped Danny Kanell, it helped me.''
Rix will be a senior next season. Backup Wyatt Sexton, who will be a redshirt sophomore, is the only other quarterback on scholarship following Fabian Walker's decision to transfer to Valdosta State for his senior season.
"Xavier's an exceptional player," Beach said.
"You don't get these very often. I've been coaching for 10 years and I don't think I've coached a kid as good as him."
Beach also pointed to Lee's quiet but commanding presence. Lee was voted a team captain by his teammates at the recent All-American Bowl in San Antonio.
"He was the top vote getter," Beach said.
"I saw a different side of him, when he opened up to the players. That says a lot that he was voted team captain by all those great players. That says a lot form him. He's a quiet leader, a player who leads by example."
Lee, who compares his ability to Ward and NFL quarterbacks Dante Culpepper and Donavan McNabb, says he had made up his mind to attend FSU last Monday. His smiling mother, Gloria Postell, said she was "glad the process is over. The family will still be close and we are looking forward to some more football games."
And, of course, those games will be as a member of the Garnet and Gold, Florida State Seminoles.