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About Us


The PiperPartners Team at Keller Williams Realty is committed to helping our clients buy and sell their homes for the right prices.

Our mission is simple: We improve lives by delivering 5-star real estate service with the highest levels of competence, trust, and integrity. We are known as connected, compassionate, and giving leaders in the communities we serve.


See what others have to say about us.


Andy Piper

Founder, CEO

Listing and Buyer Specialist

andy1Andy Piper is the founder and CEO of the PiperPartners real estate team – He is also creator of the proprietary 189-step Piper Partners Marketing Formula™. Andy is well-known for his in-depth local knowledge and his outstanding service to his clients, and is renowned for his marketing savvy, particularly in regard to online marketing – he has created one of the most powerful, cutting-edge and comprehensive real estate websites in the country, with more than 3000 pages.

Andy Piper is a top producer at Keller Williams – top 5% of all Keller Williams Ann Arbor real estate agents. He is a member of the Keller Williams Agent Leadership Council and is a KW Mentor.  Andy brings his customer-first approach along with strong marketing, negotiation and management skills to each real estate transaction.

Andy, his wife, Diana, his three children, Karl, Marta, Julia, and their four cats have been Ann Arbor residents since 1996. Born and raised in Grosse Ile, Michigan, he has a degree in Urban Planning from Michigan State University.

An expert on Ann Arbor area communities and neighborhoods, Andy is up-to-the-minute on market conditions. He works hard to maximize results for each client. He is known for being committed to advancing knowledge on technology and social media.

Call Andy at (734) 604-8242 or Email at Andy@piperpartners.com


Tanya Hill


tanyabwTanya Hill brings a diverse set of experience to her role as Realtor on the PiperPartners Team: ten years as a licensed real estate agent in Ann Arbor, ten years as an educator, and five years as a public speaker on Energy Efficiency for DTE Energy. She is committed to using her well-rounded background to ensure clients get the best possible value out of the home buying process.

Tanya is a native Michigander and Ann Arbor townie with detailed knowledge of the city’s neighborhoods, homes, educational opportunities, entertainment, and restaurants. With her deep knowledge of the Ann Arbor area, Tanya is able to not only ensure the home buying process goes smoothly, but can also comprehensively help buyers acclimate to their new surroundings.

Call Tanya at (734) 330-4310 or Email at Tanya@piperpartners.com


Rebecca Sturgis


Rebecca specializes as a Buyer’s Agent for The PiperPartners Team. She has lived in Ann Arbor her whole life and is an expert when it comes to Ann Arbor neighborhoods and surrounding areas – she successfully works with clients from here to West Bloomfield, Farmington Hills,  Novi, Grosse Pointe, Canton, and Saline. Every step of the way, Rebecca provides unbeatable customer service to her clients while helping them to achieve their real estate goals. Her enthusiasm for real estate shines through in her work with clients.

Rebecca has lived in Ann Arbor since she was in elementary school and is a graduate of Ann Arbor Huron High School, where she was captain of the Women’s Varsity Water Polo team. She also competed twice in the USA Water Polo Junior Olympics. When she’s not in the office, you’ll likely find her doing something near water, like boating on Lake St. Clair or Muscamoot Bay with friends.

Call Rebecca at (734) 821-0796 or Email at Rebecca@piperpartners.com


Ashley Gartrelle

Executive Assistant & Listing Coordinator

ashleybwAshley Gartrelle was born and raised in Metro Detroit, and completed general studies at Macomb Community College. She currently lives in Ann Arbor and is working toward a bachelor’s degree in Urban Planning at Eastern Michigan University.

With over three years of real estate experience, Ashley manages multiple administrative roles for The PiperPartners Team related to listing coordination, internal operations, and client care. She also has extensive experience working in property preservation and creating repair plans, market analyses, and monthly reports.

Outside of work, Ashley loves being in the sunshine and hiking, kayaking, biking, or doing yoga.

Call Ashley at (734) 821-0793 or Email at Ashley@piperpartners.com


Maggie Cease

Marketing & Operations Director

Cease-Maggie-Team-Pic-1 copy (1)

An Ann Arbor native, Maggie is a graduate of University of Michigan where she graduated with a degree in psychology. After continuing studies in Toronto, Ontario on a Fulbright scholarship, Maggie has been marketing for small businesses in Ann Arbor ever since.

At PiperPartners, she provides strategic consulting, project management, and marketing plan development. This includes managing website content, administering email and direct mail, shooting professional-quality photos and videos, and designing graphics.

When she’s not working, Maggie loves eating at Ann Arbor’s many tasty restaurants with family and friends, as well as cooking at home. Always making something with her hands, she’s likely to have a woodworking or knitting project underway, too.

Call Maggie at (734) 531-9311 or Email at Maggie@piperpartners.com


Contact Us

For immediate assistance, call us at 734-845-9700 or email Andy Piper at andy@piperpartners.com.