As it gets ready to move into a brand new preK-12th grade building this fall, the Hillsdale Local School District is giving former students and community members a chance to say goodbye to its current buildings through a series of open houses.  The second of the three open houses will take place this weekend, on Sunday, from 2-4pm, at the middle school.  The high school open house will take place on May 6th. The open house for the elementary school was held last month.