There is a transfer rule & it permits transfers from IAAM schools and other schools from June 1st to September 1st without penalty. You just can't transfer during the school year unless you meet one of the exceptions:

7. Transfer Students (Adopted May 2008, amended May 2011*) – Definition of a Transfer Student: A transfer student is one who changes enrollment from one school to another after high school matriculation.

Academic Year Transfer: A student-athlete may not represent two schools in athletics in the same academic year regardless of the competitive level she has participated. Therefore, any student transferring during the academic year is not eligible to participate in interscholastic athletics, at any level, during that academic year if she has participated in athletics at any level at her previous school. (“Participated” refers to physical entry into a bona fide school-sanctioned athletic contest.)

*The only exceptions to this transfer policy are (a) if a student were to change their primary residence; a change in primary residence means a move of more than 30 miles from their present residence (would include Out-of-State Boarding student) or (b) if a student’s present school eliminates the athletic program in which she is participating.

Open Enrollment Period: An Open Enrollment Period will be offered for member and non-member student-athletes. From June 1 through September 1, student athletes transferring from any member or non-member school, may transfer to and participate in interscholastic athletics, at any level, without penalty.

To qualify under this guideline, all appropriate paperwork must be completed and the enrollment contract deposit must be paid on or before September 1. The IAAM reserves the right to request copies of any enrollment contract.

The student-athlete must physically be attending classes on the first day of fall classes or by September 1, whichever is later. If the opening of the member school is after September 1, the required paperwork and deposit must be complete on or before the September 1st date.

Any student transferring from member to member school must have satisfied all financial obligations at the previous school before participating in any interscholastic athletics, games or practices.