About Us

Real estate transactions have lots of details and the journey can have twists and turns. With years of experience, Bill and Scott have the skills and knowledge to guide you through the process and get you to where you're going as smoothly as possible. We have helped a lot of clients get onto their next beautiful chapter and we look forward to doing the same for you!

  • Bill Stegeman

    Bill began his real estate career in New York. After graduating from Princeton University, he moved to the City, got his real estate license and went to work selling new condominium developments for the Related Companies.   As a top producer on several new projects throughout Manhattan, including the Upper East Side, Midtown, Chelsea and Greenwich Village, he learned a lot about selling and marketing new construction and the process that homebuyers go through.  While living in the City, Bill took advantage of many of the things New York has to offer, including classes at the New York School of Design.

    With sales experience under his belt, Bill enrolled in business school at Columbia University where he earned his MBA in real estate finance and marketing. He took what he learned and applied it to his family’s real estate business, developing campus housing catering to students at the University of Michigan in Ann Arbor. He found himself quickly drawn to the sales aspects of the business and re-structured the entire leasing operation, including marketing, staffing and developing several new properties for the portfolio.

    Eager to get back into sales and feeling the call of the city, Bill moved to Chicago, got his Illinois license and quickly became a top-producing broker with Coldwell Banker. A meeting with an executive at Baird & Warner, the oldest private firm in Chicago, brought him to the broker management side of the business where he transformed a fledgling real estate office near the Fulton Market District, doubling it in size and turning it to profitability in 18 months.  He identified and spearheaded an opportunity for B&W to acquire a competitor brokerage and guided that merger of agents and cultures, being eventually named Managing Broker for Baird & Warner’s flagship Lincoln Park office. In that position, Bill trained many luxury brokers to build their own highly successful real estate businesses.

    With his experience in broker management, Bill was recruited to the Texas capital to manage Realogy’s Better Homes and Gardens office in Austin.  Seeing first-hand the incredible upward trajectory in what Zillow was calling the country’s strongest real estate market, Bill and Scott decided to launch Astor & Longwood the following year. The vision for the company was to build a boutique real estate brokerage providing unparalleled service for its clients. The duo thoroughly research every aspect of the property in question. They maintain important relationships with brokers in the industry.  They emphasize communication with their clients every step of the way.  Their hands-on approach puts their clients in an advantageous position in today’s highly competitive real estate market.

    The success of Astor & Longwood is based on the relationships Bill and Scott have developed with their clients and the level of professionalism and service they bring to the transaction. Their business is built on past clients and those who have been referred to them. They work with a highly curated list of service providers and maintain excellent relationships with other brokers in the industry for the benefit of their clients.

    Bill thoroughly enjoys the Texas lifestyle and everything that Austin has to offer. He is involved with his college alumni groups and serves on the Schools Committee for high school students. He has trained for marathons with Gilbert’s Gazelles and placed 10th in his age group in the Dallas Marathon a few years ago. He is past President and an active member of his local Business Networking International chapter.  Bill is also a jazz and classical pianist and enjoys composing electronic music.

  • Scott Gill

    Scott Gill enjoys all aspects of the built environment. He is an enthusiastic real estate professional, published architectural historian, and trained architect who brings a deep-rooted love of residential design, construction, and sales to Astor & Longwood.

    Scott started life in the suburbs of Los Angeles and then moved with his family to Louisville as a teenager. After receiving his professional degree in architecture, he embarked on his working career as an architectural designer in Houston, where one of his first projects was recognized with an industry award. Not long after, he relocated back to Louisville, joining his father and brother in the commercial real estate business. During his decade in Kentucky, he oversaw the design, renovation, leasing, and management of a portfolio of more than one million square feet of office, warehouse, and industrial properties. When the business pivoted to a focus on operating companies in lieu of real estate, Scott stayed in the industry and entered residential brokerage in Chicago to participate in the city’s booming design/renovate/resell market. Following a very successful first two years in sales, Scott was recruited to return to management. Over the next decade he managed offices for Koenig & Strey GMAC, Coldwell Banker Residential Brokerage, and Baird & Warner—in locations extending from downtown Chicago to the north shore communities of Evanston and Winnetka.

    Scott’s experience in residential real estate extends beyond brokerage to design and construction. He has planned and renovated single family houses and condominium and cooperative apartments in Texas, Kentucky, Michigan, Florida, and South Carolina, encompassing suburban houses and urban high rises that include both primary residences and second homes. In this work he has navigated the zoning, board review, and permitting processes, and participated in contractor negotiations and oversight. He is additionally well versed in the intricacies of multi-family ownership regimes, having served on multiple condominium and cooperative boards.

    In 2012 Scott took a sabbatical from the real estate business to pursue a life-long dream of earning a PhD in architectural history. Six years later, Dr. Gill found himself teaching the history of world architecture to 120 freshmen at the University of Texas at Austin, and, along with partner Bill Stegeman, founding Astor & Longwood. Scott’s and Bill’s complementary backgrounds bring a special depth to A&L and the service it provides its clients. While both partners share a deep understanding of the real estate business and have experience-honed skills in management and negotiation, Scott adds a keen appreciation of architectural history and a focus on market research to Bill’s exceptional relationship and sales capabilities.

    Scott is the co-author of three books on the history of Kentucky architecture and holds the teaching position of lecturer at the University of Texas at Austin School of Architecture. He is a member and past director of the Society of Architectural Historians, where he also sat on the development committee. He is a member of the Texas Chapter of the Institute of Classical Architecture and Art as well as an Associate Member of the AIA.  Scott additionally serves as a director of a private non-profit foundation dedicated to supporting youth education. During his years in Louisville he served as a director of the city’s downtown management district, Actors Theatre of Louisville, and Kentucky Opera. In addition to a PhD in Architectural History from the University of Texas, Scott earned an MBA from the Massachusetts Institute of Technology, a Master of Architecture from Rice University, and a Bachelor of Arts in History from Stanford. He is a licensed Realtor in Texas and Illinois.

    Scott enjoys travel with partner Bill, and especially going places where they can hike (Big Bend is a favorite) and explore. A favorite adventure is to just get in the car, point in a direction…and go, be it to the great outdoors or to an immersion in the fascinating architecture of ancient cities. He has traversed the United States and has two continents remaining to be visited: Australia and Antarctica. He is pretty good at Italian, reasonably OK with Spanish, and can distress Parisians with his French.

  • Lisa Winningham

    A natural people person and a passionate learner, Lisa has been an Austin resident since 2005.  From her extensive training at the Ritz-Carlton Hotel Company, she understands the importance of providing outstanding customer service and regularly exceeds her clients’ expectations.  She has served the Austin community in multiple sales and service capacities, from managing several food and beverage establishments downtown to serving presidents at the LBJ Library.  

    When she’s not working with her buyers or previewing new listings, Lisa’s hobbies include gardening, jewelry making, literature, and cycling.  She is currently continuing her education at the University of Texas in the literary arts.