Martin Levy Martin works with CENTURY 21 Alliance, the largest locally-owned real estate company in Sonoma County. Over the years, Martin has served the community through years of change and differing real estate markets. Through all these changes, Martin has remained loyal and steadfast, achieving unprecedented success through hard work and focused attention to detail and client needs. Members of his equally skilled team include bilingual licensed associates and staff with specialized areas of expertise. His caring, hard work and diligence have made Martin the Number 1 Overall Agent in Sonoma County surpassing sales records in both dollar volume and the number of sales.