The 6-foot-7, 225-pound Marshall, who plays at Andover (N.H.) Proctor Academy, has a top five of Alabama, Florida, Florida State, UCLA and USC. He holds offers from all but Florida, but the Gators are expected to extend one when he visits campus June 3. There is no order for the five schools, but tight end usage and tradition will play a role.
"Every school in my top five is based off, first of all, a solid business school," Marshall said. "Second, it's what do you do with the tight ends? All the coaches know that. I'm looking for a pro-style offense that mimics what they do in the NFL right now with getting the tight end the ball. It's the true tight end with blocking in line, but also stretching out to the receiver. I like teams that really showcase (the tight end) well and really do it all.
"A lot of coaches with this new pro-style, up-tempo offense, say they are going to get me the ball, and all the coaches tell me I'm a priority for them, which I really love."
A common theme for Marshall is attending school in warm weather. This past week, his high school campus was blanketed by a late April snowstorm.
In UCLA, the tradition of sending tight ends to the NFL is appealing. He also has a few connections to the Bruins.
"I have two buddies who go to UCLA," Marshall said. "They have a great offense. I actually spoke to coach (Jim) Mora, and my dad's friend is actually good friends with coach Mora, so we have some ties there. It's just a great program, and a great school as well, so I could really see myself flourishing there."
He will have a chance to see UCLA extensively this summer, as well as crosstown rival USC.
"They're definitely a big dog. I'm definitely interested in them," Marshall said. "That is one I was really hoping to get for a while. Things just happened in a short span of time. I think I'm going to spend a good amount of time there this summer. I have a buddy who lives (in Newport Beach).
"I know they are building a new student center, a great, five-star place I would be living. I know they have great things in the works, and great history there. The Coliseum, I don't think there is anything like playing there."
Also, Trojans tight end signee Cary Angeline, who is from Pennsylvania, is talking to Marshall.
"I've been going back and forth with him," Marshall said. "He kind of had the same situation I did with a bunch of the schools in his top 5, top 10, and he narrowed it down. I've been going back and forth with a few guys that were in similar situations as me, and see what they saw, and why they really broke it down and why the committed to where they did."
Alabama is also showing a lot of interest. Assistant coach Mario Cristobal was at Proctor Academy last week, and Marshall and coach Nick Saban spoke at length Thursday.
"(Saban) is really trying to sell me that they are going to have one tight end because they are graduating (others)," Marshall said. "He said, 'You're going to have a chance to come in and have a true impact.' He was at the NFL Draft, and he was saying, 'I could see you being here in three or four years.' I've really heard some great things from them.
"(Cristoblal) told me I was a priority. He really wants me to get to meet coach Saban, sit down with him, and tour the facilities. I know they are going to sell themselves."
Meanwhile, the scheduled trip to Florida will allow Marshall to see the Gators, and perhaps add an offer he wants. He speaks regularly with tight ends coach Greg Nord.
"They know they are one of my top schools and I want to play college ball in a warm place," he said. "They said I was on top of their list and they know they're on top of my list, so he said he wants me to get down there so they can give me the offer. He wants it to be he shows me the facilities, I'm down there. They want to offer me after I come down there."
Florida State is another program Marshall likes, as does his family.
"My dad loves it there," he said. "We go back and forth about it. He really likes it there. We talk about the business schools and what they can do."
Marshall said he does not have a time frame for a decision.