Below is documentation from the NYS Committee on Open Government, the Ken-Ton Board District Policy Manual, and NYS School Board Association's 'School District Obligations Under the Open Meetings Law'. I have provided links to the actual documents as well as the pictures below.
"In short, it is my view that any member of the public has an equal opportunity to partake in an open meeting, and that an effort to distinguish among attendees by residence or any other qualifier would be inconsistent with the Open Meetings Law and, therefore, unreasonable."
"a) Who May Address the Board:
Anyone who places his/her name, address and topic on the sign in sheet."
"...but cautions that if a school board permits public participation, it may not discriminate between residents and non residents (NYS Department of State, Committe on Open Government, OML-AO-4141, Feb. 24, 2006)."