Mary Siefert


A passion for real estate...with that passion, I will represent you with 100% of your interests in mind, while educating you throughout the process. With my 30-year sales and finance background and 40 years of living in the Boulder/Louisville area, I will utilize my resources and negotiate the best possible price, while making your real estate transaction fun and exciting, not frustrating and stressful.

I graduated from Fairview High School with honors in 1984. After high school I graduated from University of California, San Diego suma cum laude, top 1% of my graduating class in 1988, with an economics degree and double minored in exercise physiology and psychology. I then returned to Colorado, because this is where I truly love to live for endless reasons, and also have the pleasure to be close to my family that also live in Boulder.

I am honored to be a top volume and production realtor at Live West in 2012, 2013, 2015, 2016, 2017, 2018, 2019 and 2020! I have sold over $90 million in real estate throughout my career! I believe my success has come from a very hard work ethic and always being proactive, rather then reactive. Live West Realty also had a record breaking sales year and has close to 40 agents. Live West Realty has a solid foundation and reputation for more than twenty years. Live West Realty concentrates on customer service and professionalism.

I was also recognized as 5280 Magazine’s Top Real Estate Agent. This award was based on total production and customer service from her clients, peers, and real estate experts!

I have created a large personal network and excellent rapport with my personal contacts, business associates, and established real estate brokers in the area and will integrate my relationships when marketing your home.


Mary's recent sales

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