A Voice for All SLP, PLLC was founded by Marie Guarnieri, CCC-SLP TSSLD, to provide unique, individualized treatment and care to children, adolescents, young adults and families – to help them achieve independence and become confident communicators regardless of their communication style. 

As a speech language pathologist, Marie specializes in communication disorders and is passionate about helping her clients communicate more effectively, process the world around them, and foster positive relationships with others. She works with clients of all ages and abilities on social communication skills (e.g., friendship-building, relationship maintenance, social safety, nonverbal language, perspective taking, and self-advocacy), executive functioning (e.g., time management, planning and prioritizing, making and keeping appointments), as well as college/career planning, transitioning, and development through supportive, reflective conversations and role-playing.

Marie brings over a decade of experience working with clients of all ages in a variety of settings, including home care, private clinics, and public schools, where she has delivered services to students with various learning disabilities. She has also helped numerous students research, apply to, and get accepted into college.

Marie also brings experience from working with executive function difficulties and running social skills groups for teens in schools. She is passionate about offering a strength-based, neurodiversity affirming approach to therapy, highlighting her clients’ interests and personal goals.

Marie is certified with the American Speech and Hearing Association (ASHA) and holds a certificate as a Teacher of Students with Speech and Language Disabilities (TSSLD) in New York State, and is Bilingual Certified by Columbia Teachers College. Additionally, she is certified as an IBCCES Certified Student Mental Health Specialist (SMHS) and is a certified provider for UCLA PEERS®.

With a passion for continuous learning and staying up-to-date with new research and advancements, Marie is also a two-time recipient of the ACE Award, a formal recognition of professionals who have demonstrated commitment to lifelong learning, awarded by the American Speech and Hearing Association.



Mom of two daughters, who are now young adults. I am blown away at the amazing young women they have become and can’t believe how fast time has flown!

I am married to the love of my life, who I met in Japan while studying abroad. Turns out he was from New York though ;)

I was born and raised in Sweden, am bilingual and have dual citizenship. Both my daughters speak Swedish as well. I love languages and am bilingual certified.

When I am not working, you might find me hiking a mountain or traveling to visit family.