Meet Our Team

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Providing both parents and their children with resources to enhance communication and literacy development:

  • Personalized

  • Pediatric  

  • Speech

  • Language

  • Literacy

  • Executive Functioning

  • Social Skills 

  • Orofacial Myology

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Courtney Overton



Speech-Language Pathologist

Literacy Specialist

Mrs. Overton is currently on maternity leave.

Courtney Overton, MS, CCC-SLP is a Speech-Language Pathologist and Literacy Specialist. She is the Owner and Founder of Speech of Cake. With a passion for shaping future clinicians, Courtney also serves as a Clinical Fellowship Mentor at Speech of Cake, a Clinical Supervisor at The George Washington University, and an Adjunct Professor of Speech Sound Disorders at Emerson College. For the past few years, Courtney has advocated for neurodiverse students and students of color by providing seminars, workshops, and keynotes on a national level through her organizations, DiverCity SLP and The SLP Dyslexia Guide.

Courtney is a doctoral student in literacy, culture, and language education at Indiana University with a minor in educational leadership. She recently earned a certificate in entrepreneurship from Cornell University. Courtney attended Emerson College in Boston, Massachusetts to earn a master's degree in speech-language pathology, and she obtained a bachelor's degree in speech-language pathology, minor in linguistics, and certificate in American Sign Language at the University of Pittsburgh in Pittsburgh, Pennsylvania. Courtney is a member of For(bes) the Culture, National Black Association for Speech-Language and Hearing, American Speech-Language Hearing Association, International Literacy Association, International Dyslexia Association, Pearl and Ivy Educational Foundation, Incorporated, and Alpha Kappa Alpha Sorority, Incorporated. 


Courtney is trained in PROMPT, Tethered Oral Tissues (TOTs), Tongue Tips, Thumbs Up!, Story Grammar Marker, Orton-Gillingham, Lindamood Bell, Lucy Calkins, Reading Mastery, Corrective Reading, Read Well, Language!, Wilson, Qualitative Reading Inventory, Dyslexia Fundamentals, The Logic of English, Social Thinking, and Unstuck and On Target. She specializes in evaluating, diagnosing, and treating orofacial myofunctional disorders, articulation disorders, phonological disorders, reading/writing disabilities, language disorders, and social skills. Courtney is a 3-time 40 Under 40 recipient in DC, Alexandria, and Northern Virginia!

Leigh Poole



General/Special Education Teacher

Mrs. Poole is currently on maternity leave.

Leigh Poole, M.Ed., is a Virginia state-certified Special Education teacher. She completed her graduate studies at George Mason University in Fairfax, Virginia to earn a master’s degree in Special Education. Leigh earned a bachelor’s degree in Elementary Education at the University of South Carolina. She began teaching as a first-grade teacher at an international school in Brussels, Belgium. Leigh then moved to Virginia and has taught in both the general education and special education setting for ten years! 

Leigh is currently a learning specialist at a local private school in Alexandria, VA. On a daily basis, Leigh implements responsive classroom practices to create a nurturing and safe environment. She believes in the science of reading. Leigh uses the Orton-Gillingham methodology to teach reading and writing skills, while using Heggerty to teach phonics skills. 

Working with children is Leigh's passion and she has experience helping children from kindergarten to sixth grade in the areas of reading comprehension, fluency, spelling, writing, math, and study skills. Leigh enjoys working with children with Autism, Learning Disabilities, Traumatic Brain Injuries, Intellectual Disabilities, Dyslexia, Cerebral Palsy, ADHD, and Emotional Disabilities. She is trained in Orton-Gillingham, VMath, Qualitative Reading Inventory, Dyslexia Fundamentals, Lucy Calkins, Step Up to Writing, Reading Mastery, FUNdations, Connecting Math Concepts, Read Well K-2, Number Worlds, Corrective Reading, Responsive Classroom, and Unstuck and On Target.

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Arynn Byrd 

Speech-Language Pathologist

Ms. Byrd meets with students age 4 and up at our office at 601 King Street Alexandria, VA 22314. She also meets with students at the summer enrichment program.

Arynn Byrd joined the Speech of Cake team in 2019. She received her MA in Speech-Language Pathology at the University of Georgia in 2018. She is currently pursuing her doctoral degree at the University of Maryland, College Park. Her research interests include language development, code switching, dialect instruction, and non-mainstream dialects. She is particularly interested in African-American English and the educational impacts of code switching. Arynn enjoys working on speech, language, and literacy skills with elementary age children. She is trained in the Orton-Gillingham methodology. 

Phoebe Sullivan

Speech-Language Pathologist

Social Media Manager

Ms. Sullivan meets with students at both offices during the school year. She also meets with students at the summer enrichment program. 

Phoebe Sullivan joined the Speech of Cake team in 2020 as a Graduate Clinician. In 2021, she was promoted and became the Speech of Cake Social Media Manager. Phoebe added an additional role as a Speech-Language Pathologist in 2022, and she meets with students throughout the year at both offices for speech, language, and literacy therapy. 


Phoebe earned her MA in Speech-Language Pathology from The George Washington University in 2021 and her BS in Speech and Hearing Sciences from SUNY Cortland in 2019. She has experience with articulation, language, and literacy skills with clients of all ages, and she particularly enjoys helping families with young children ages 2-5 navigate the most crucial time in their child’s speech and language development. Phoebe is a strong proponent of client-centered care that focuses on the family’s values and the child’s interests. She believes in building strong relationships with children to form a foundation for fun and engaging therapy. 


Mary-Hallet Culbreth

Literacy Specialist

Ms. Culbreth works with students during the summer enrichment program.

Mary-Hallet Culbreth joined the Speech of Cake team in 2022. She is a recent graduate of Wake Forest University, where she completed her bachelor's degree in Elementary Education with a minor in Anthropology and a master's degree in Education. In her time at Wake Forest University, Mary-Hallet worked with students from first to fifth grade, including teaching at an arts-based school and serving as lead instructor for a remote learning student group. As a Virginia native, Mary-Hallet has also served as an advisory board member for the Explore More Discovery Museum in her hometown of Harrisonburg.


Mary-Hallet is currently a first grade teacher at a local private school in Alexandria, Virginia. As part of her daily schedule, Mary-Hallet implements responsive classroom initiatives as well as a range of different tools that help build an exciting and welcoming learning environment. Mary-Hallet is passionate about the implementation of group work, and conducted her graduate thesis on the impacts of heterogeneous and homogeneous groupings in learning instruction at the elementary age. Mary-Hallet uses both the Lucy Calkins and Orton-Gillingham methodologies to teach reading and writing skills, and uses Heggerty and FUNdations to teach phonics skills.

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Alexis Clark

Summer Associate

Ms. Clark works with students during the summer enrichment program.

Alexis Clark joined the Speech of Cake team in 2022. She is currently an undergraduate student at North Carolina A & T State University in Greensboro, North Carolina. She is an honors student majoring in speech-language pathology and audiology with a minor in psychology. Alexis chose her career path because of a desire to teach and help people. She plans to pursue a master’s degree immediately after obtaining her bachelor's degree and hopes to gain experience working with special education students and the elderly in a hospital setting. Some day, Alexis would like to open her own speech-language pathology business.


As a dormitory resident assistant, Alexis has always had a passion to assist those in need and give back to others. As a high school student, she served as a teacher’s aide in an elementary school. Throughout middle and high school, Alexis was a member of Top Teens of America (TTA), a national nonprofit educational organization under Top Ladies of Distinction, Inc. dedicated to community service.  Alexis has held several leadership positions in TTA as well as her school’s National Student Speech Language Hearing Association (NSSLHA). 

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Jacqueline Greenman

Summer Associate

Ms. Greenman works with students during the summer enrichment program.

Jacqueline Greenman joined the Speech of Cake team in 2021. She recently earned a bachelor’s degree in Human Development with minors in Language Sciences and Disabilities Studies at Virginia Tech. Jacqueline is passionate about helping children communicate so they can advocate for themselves, build social connections, and succeed in academic settings. She believes in focusing on children’s strengths to build confidence. Jacqueline is enthusiastic about finding fun ways to incorporate language and articulation goals into games and activities! 

Marina Gulak

Client Concierge

Ms. Gulak is our Client Concierge.

Marina Gulak joined the Speech of Cake team in 2022. She received her bachelor’s degree in Linguistics from Rutgers University. She graduated from New York University with a master’s degree in Communication Sciences and Disorders. She has worked with a variety of pediatric, adolescent, and adult clients in schools and clinical settings. In addition to her clinical practice, Marina is an adjunct professor in the Linguistics Department at Rutgers University. Marina's practice has expanded into providing various consultancy services for private practices across the country. She is passionate about assisting private practices with client support, expansion, streamlining processes, and staff recruitment. 

Feel free to email her at any time at: