Leadership Team

Amy M. McNamer, Executive Director

Amy M. McNamer is the Executive Director at AISGW. Early in her career, she taught at the Casablanca American School, Morocco, and she has practiced law for twenty years in a variety of contexts in the private and public sectors. Amy worked as an attorney with law firms in San Francisco and Washington before joining the United States Securities and Exchange Commission, where she was a Senior Attorney in the Enforcement Division for over ten years. She has also provided strategic consulting to several area non-profits as a volunteer for Compass Pro Bono, assisting non-profit boards with governance issues and strategic alignment matters. She and her husband have three children, all of whom attend or have attended local independent schools. Born and raised in Montana, Amy holds her BA in European History from Harvard and earned her JD at Georgetown.

Lynn Duffy Maloney, Associate Director for Programs and Engagement

Lynn Maloney has spent the last decade supporting leaders of independent schools in the Washington, D.C. region and around the country. Currently, she serves as the Associate Director for Programs and Engagement at AISGW, where, among other things, she designs and implements professional development opportunities for heads and senior administrators, curates resources, and advances best practices. Lynn also serves as the Executive Director of the Elementary School Heads Association (ESHA), where she engages regularly with PK-8 heads around the country on a range of school leadership issues.
Prior to her time at AISGW, Lynn served on the board of the Parents Council of Washington, where she did similar work for the Washington, D.C. independent school parent community. She began her professional career as an attorney, practicing international trade law for eleven years at a D.C.-based law firm.
A proud Georgetown University Hoya and New Jersey native, Lynn resides in Montgomery County, Maryland with her husband Chris, a veteran independent school teacher and administrator. She has three young adult daughters, all of whom attended independent K-8 and high schools in the D.C. area.

Allyson del Rosario, Director of Finance

A CPA and CFE (Certified Fraud Examiner), Allyson has been working in public and private accounting for thirty years in the DC area. She has a B.S. degree in Business Management from Brigham Young University, and is a member of the Virginia Society of CPAs, the Association of CFEs and the AICPA

Erin C. Summers, Director of Operations

Erin Summers has worked at AISGW since August 2019. She served as the Assistant to Member Services for 4 years before transitioning to the role of Director of Operations in July 2023. Prior to joining AISGW, Erin worked as a French and Spanish teacher at Garrison Forest School and McDonogh School in Owings Mills, MD, and most recently at The Langley School in McLean, VA. She also worked as a higher education officer at Campus France, a service of the Embassy of France in Washington, DC.

A native of Upstate New York, Erin received her BS in Human Development and French Area Studies from Cornell University and her MA in Spanish Language and Culture from Middlebury College. In her spare time, she enjoys traveling, practicing her French pastry skills, and finding fun activities to do with her son.

Melissa Lafionatis, Assistant for Member Services

Melissa Lafionatis joined AISGW as the Assistant for Member Services in July 2025. Prior to joining AISGW, Melissa worked as a Speech Language Pathologist at The Harbour School at Baltimore in Owings Mills, MD before starting her next role as Director of Learning Support at Grace Episcopal Day School. While at Grace, Melissa made the change to admissions and spent 4 years as the Director of Enrollment & Strategy.
Melissa grew up in the Washington, D.C. area and attended the University of Kentucky where she earned a degree in Merchandising, Apparels and Textiles. After a brief period working for Crate & Barrel, Melissa made the shift to the field of Education, working as a classroom assistant at Holy Trinity in Georgetown before attending James Madison University to complete her Master's in Communication Sciences and Disorders. Outside of work, Melissa enjoys reading, painting, interior design, and spending time at the beach.