Sonya Weisshappel is the founder and CEO of Seriatim, Inc., a boutique move management and professional organizing firm founded in New York City in 1999. Seriatim specializes in preparing high-net-worth properties and sellers for seamless real estate transactions, partnering closely with real estate brokers, agents, and clients to maximize listing appeal, accelerate sales, and reduce stress during downsizing, relocation, estate sales, pre-listing decluttering, and post-closing moves.
The Seriatim team provides sensitive removal of personal items, comprehensive digital inventories for sellers, attorneys, and executors, coordination with movers, storage, donation partners, as well as archival documentation and provenance research for valuable items—all delivered with white-glove logistics that keep showings pristine and timelines on track. This hands-on support allows listings to present at their best, minimizes seller overwhelm, and helps transactions close more smoothly and profitably.
Proudly dyslexic, Sonya launched Seriatim partly to avoid writing a resume; nearly three decades later, she and her team have become known as the original “Chaos Whisperers,” transforming chaotic life changes into calm, ordered outcomes. In 2017, she became the first professional organizer accepted into the Goldman Sachs 10,000 Small Businesses Program. She served as President of the New York Council of Relocation Professionals (NYCORP) from 2016–2025. Her memoir, “Confessions of a Chaos Whisperer,” was published by Post Hill Press and is available through Simon & Schuster.
Originally from San Francisco, Sonya grew up in New York City and now lives part-time in Rhode Island, where she enjoys family time and long walks with her rescue dog, Finn.