Senior Design Principal & President

    Paul Bertelli is the Senior Design Principal and President of JLF & Associates. Beginning in 1979, Paul and Jon Foote worked together for 21 years before Paul purchased the firm with partners Tammy Hauer and Logan Leachman. Paul studied architecture at Boston Architectural Center in Boston, Massachusetts and at Montana State University in Bozeman, Montana. He holds a Bachelor of Arts degree in Environmental Design and a Master of Architecture. Paul is currently a board member of the Montana State University School of Architecture Advisory Council, a founding board member and current advisory board member of the Yellowstone Business Partnership, a current advisory board member of the Yellowstone Park Foundation, and a past trustee of the Museum of the Rockies. Paul is a much sought-after designer who has created some of the most unique houses in the country.

    When Paul is not practicing architecture, he enjoys fly fishing in pristine, remote waters. He is an avid skier and frequents the steep slopes at Bridger Bowl and Big Sky. A foodie at heart, he enjoys both cooking and sampling gourmet food and wine. One can also see him around Bozeman on the hiking trail with his stepdaughter, Amelie, and wife Jillian.

  • Logan Leachman + JL


    Logan began his career in 1992 under firm leadership of Jonathan L. Foote. In 2000, upon Jonathan’s retirement, Logan joined Paul and Tammy as partners and founding members of what is now referred to as JLF & Associates, Inc. Logan has been a driving force behind many of the firms’ most successful projects. Logan was instrumental in forming many of the methods JLF Design Build practices today, a process he continues to champion and refine. He is responsible for designs, project management, company policy, and corporate analytics.

    Logan studied architecture at Western Kentucky University in the mid 1980’s where he met his wife Jamie. They moved west in 1990 and started a family. All three of his children were raised in Montana where they all enjoy an active, outdoor lifestyle. Logan enjoys traveling to new worldly destinations usually with his bike in tow, skiing in the beautiful mountains of Montana, and gardening. He is pleased that his daughter, Morgan, chose to study architecture while interning at the firm and carry on his passion for beautiful, responsible design.

  • Ashley Sullivan


    Ashley is a design Principal and registered architect at JLF & Associates. She studied and earned her Bachelor of Architecture at Auburn University. Ashley’s design-build background began on the Hay Bale House during the first year of Rural Studio (1994) under “Sambo” Mockbee. Here she developed her respect for clients’ needs, place-based design, and craft. She continues to expand her knowledge as she collaborates with her design-build partners, craftsmen, and artists. Ashley grew up in Nashville, Tennessee and has merged her Southern lady charm with a relaxed Mountain West lifestyle. Her background, cultural experiences, and desire to learn have given her a unique perspective on life.

    Ashley renews her inspiration through her connection with nature and culture. She can often be spotted rafting the Yellowstone River or taking a few turns on the slopes of Bridger Bowl or Big Sky. She also enjoys backpacking and cross country skiing in the silence of the forests trails in the Absaroka-Beartooth Mountain Ranges. She loves to travel and expand her cultural mindset. Her friends and family know her best for enjoying a glass of wine while engaging in wonderful conversation, laughter, and inspirational thoughts.

  • John M. Lauman

    Junior Partner

    Like the backstory that plays behind the opening title credits of a typical 80’s movie, John was raised in a small mining/farming community in southeast Idaho, studied architecture at Montana State University, and began his career in Jackson, Wyoming. After two short years and a chance meeting with some JLF employees, he began working for JLF & Associates in July of 1997. Over the years, he has grown from a green intern to Partner, helping expand the company’s resume of diverse projects and satisfied clients. He always endeavors to far surpass the client’s expectations. He is excited to help mold the future of the company and intends to ensure that the legacy of JLF endures. John is a devoted husband, loving father of two daughters, and obsessive fly-fisherman of the incredible waters of Montana and the world.

  • Jake Scott

    Junior Partner

    Jake began working with JLF & Associates in 1999 as an intern, rising through the ranks to become a Partner. Jake has managed projects ranging from small guest houses to ranches and resort facilities. He works closely with clients and team members from programming through construction to make every project successful. Before starting at JLF, Jake moved from Vermont to Bozeman where he graduated with a Master of Architecture from Montana State University. He is an architect, a LEED Accredited Professional, and a member of the U.S. Green Building Council (USGBC). He is currently serving as the board president of the Bozeman Film Festival. Jake and his wife, Stacey, enjoy camping in the beautiful Montana summers. In the winter they enjoy traveling to more distant locations.