President
Marie Rosenthal

MISSION & LEADERSHIP
Marie is a dedicated Jewish educator and administrator with over 30 years of experience, bringing warmth and excitement to Jewish learning. She has worked with students of all ages, backgrounds, and learning styles in both formal and informal settings across the tristate area, Winnipeg, and Melbourne.
Currently, Marie teaches private students through carefully customized Jewish education curricula and serves as an educational consultant for Limudei Kodesh and Hebrew Development at Zucker Hebrew Academy in Hollywood, Florida. She has also developed curricula for Bais Yaakov Ateres Miriam and the Meorot Jewish Special Education program in Great Neck.
For over 18 years, Marie has played an integral role in the Manhattan Jewish Experience, guiding young professional women in their Jewish growth. She also teaches Kallahs and supports women on their conversion journey, offering mentorship and education.
Marie lives in West Hempstead, NY, with her husband, Rabbi Pinny (National Director of Development, OU-JLIC). They are the proud parents of six children and two granddaughters.
Vice-President
Avital Weissman

EDUCATION
Avital is the Rebbetzin and Yoetzet Halacha of the Young Israel of Plainview. She holds a BA in Jewish Studies and History from YU Stern College for Women, an MS in Jewish Education from Azrieli Graduate School, and a certificate in Computers in Education from NYIT. She is also a certified Yoetzet Halacha from Nishmat and has trained as a Fertility Counselor.
With 24 years of experience in both formal and informal Jewish education, Avital has taught women of all ages and backgrounds. She is an adjunct professor of Jewish Studies at YU Stern College for Women, including in their Mechina program, where she provides foundational Jewish education.
As a Yoetzet Halacha, Avital specializes in guiding women through Taharat HaMishpacha at all stages of life and levels of religious commitment, offering support and halachic expertise.
Avital lives in Plainview, NY, with her husband, Rabbi Elie, and their five children.
Secretary
Andrea Borah

SUPPORT SERVICES
Andrea, an LCSW with over 20 years of experience in Jewish organizations, specializes in counseling, grief counseling, and developing inclusion curriculums for special needs students. She has led mentoring programs and runs a private practice. Andrea and her husband, Rabbi Richard, live in Hewlett, NY, and are proud parents of three daughters.
Treasurer
Avital Elisheva (Trisha) Klein

OUTREACH
Trisha was born and raised in West Hempstead, NY, where she has lived her entire life. Professionally, she is an Insurance Broker and Commercial Lines Supervisor at Rosenzweig Insurance. She first converted to Judaism in 2011 and re-converted through the Beis Din of Queens in 2023.
Trisha is EMT trained, and together with her husband, they are active members of Chabad of West Hempstead, where Yonatan serves on the CSS Volunteer Security team. She is involved in the sisterhood and welcoming committee and shares her love for Shabbos and Eretz Yisrael through social media. Her posts often highlight her home-cooked Shabbat meals and reflections on Jewish life.
She is excited to be part of the Achoteinu team, building a strong support community and sharing her journey while continuing to deepen her connection to Hashem.
Trisha lives with her husband, Yonatan (FDNY EMS Deputy Chief), and their twins, Avigayil and Yaakov. Trisha and Yonatan are the proud parents of their twins, cherishing the joy and fulfillment of raising them in a warm, Jewish home.
Director of Digital Experience
Sara Sapienza

Technology & Design
Sara is the Digital Campus Experience Manager at Fordham University, where she leverages her expertise in UX design and technology to enhance the student experience. She sponsors and designs the Fordham RamCentral app, a digital companion that helps students navigate both their academic journey and campus life.
Currently in the process of converting through the Manhattan Beit Din, Sara is deeply committed to her Jewish journey. She felt a strong calling to be part of the Jewish community and grow closer to Hashem, a journey that continues to inspire her work.
As a member of Achoteinu, she applies her skills in technology, design, and user experience to support its mission of empowering women and fostering vibrant Jewish communities.
Sara lives in West Hempstead and is engaged to David Rosenfeld, who has three sons.
Meet Our Founders
Achoteinu was founded by women committed to supporting those converting and who have converted to Orthodox Judaism by providing guidance, education, and a strong community.
As an Orthodox organization, we are committed to empowering Nashim Tzidkaniyot, righteous women, who will strengthen the Jewish community, create a Kiddush Hashem, and positively impact the world.