Agree that typically D3 schools don’t offer likely letters. For the more selective D3s, a recruited athlete will generally submit academic materials for a pre-read and, if the recruit gets a “green light” from Admissions, the coach will then decide whether to offer the recruit support in the Admissions process. The quid pro qui in recruiting is typically, the coach offers the recruit a spot on the team and the recruit agrees to apply ED. That way, the coach knows the recruiting need for the incoming class is filled since the admissions offer is binding, barring financial offer not being workable. And, the recruit gets an admissions decision earlier than classmates, and knows they have a spot on the team. Win-win.
Chicago is the “most selective” ranked D3 school which offers EA and ED. I don’t know if Chicago, or similar D3 schools which offer both ED and non-binding EA, would still expect recruits to apply ED rather than EA. Our experience was that schools that offer both EA and ED, such as Lawrence, Beloit etc. realized they could not “compel” students to apply ED to hold a roster spot and were okay with a recruit applying EA app. Then, the coach went to work to convince the accepted applicant to choose that school over others.
But bottom line, as far as I know, D3 schools don’t do likely letters. They may do admissions pre-reads for prospective recruits who would then apply ED, but there is no likely letter.