About Us

With over 20 years of real estate expertise, Jennifer Ruelens is a powerhouse in property management and a leading force in Central Pennsylvania’s real estate investment community. Jen has built a reputation for transforming challenges into opportunities, guiding investors to maximize their returns while ensuring their properties are protected. Known for her bold leadership and unwavering commitment to excellence, Jen has redefined the standards of property management in the region, offering a unique blend of professionalism, strategic insight, and hands-on expertise.

Jennifer Ruelens is a recognized leader in the property management industry, with two decades of experience managing large portfolios of residential properties. Jen’s career began as a leasing agent on a 300 unit property in Mechanicsburg, PA and over the years, she has honed her expertise to become a trusted advisor for property owners throughout Central Pennsylvania. Her deep understanding of the market, coupled with her strategic thinking, has allowed her to navigate complex property challenges and deliver results that exceed expectations.

As the owner of One Focus Property Management, Jen’s leadership extends beyond daily operations. She is actively involved in business development, overseeing sales, strategic growth, and the overall direction of the company. She is particularly focused on finding innovative ways to help investors grow their wealth, reduce their workload, and eliminate the stress often associated with property management. Jen’s approach is simple: deliver more protection, less work, and NO DRAMA.

Jen’s expertise is backed by her prestigious credentials, including the Master Property Manager (MPM®) designation, the highest level of recognition within the single and small multifamily property management industry. She is the only property manager in Central Pennsylvania to hold this designation, a testament to her commitment to excellence and her continuous pursuit of knowledge in the field. In addition to her MPM® designation, Jen is a founding member of the Pennsylvania Chapter of NARPM and served as its president in 2022, further solidifying her leadership within the industry. Through her role as Hold It with PM Jen, she has created a platform to educate and empower real estate investors, providing valuable insights, strategies, and resources to help them succeed. From producing online content to hosting regional meetups and conferences, Jen’s advocacy work has reached countless investors, helping them navigate the complexities of property management and investment. Outside of her professional life, Jen enjoys a fulfilling personal life in Williamsport, PA, with her husband and their two dogs, Josie and Frankie. When she’s not working, you can find her kayaking on the river, practicing Pilates, or enjoying the outdoors. Her love for balance and a healthy lifestyle is reflected in her approach to both her personal and professional endeavors.

Jessy is the Director of Operations and acting Maintenance Operations Manager, where she ensures everything runs like a well-oiled machine. Her expertise includes eliminating obstacles, managing profit and loss, overseeing fleet operations, and keeping the team on track with training and compliance. Jessy diligently maintains key performance indicators (KPIs) and company communications, all while championing the company’s Proven Processes. She lives in South Williamsport, just down the street from her sister and the company's owner, Jen. When not traveling the world, perfecting her sourdough baking, or strategizing her next board game win, she’s probably reminding everyone of long-forgotten grammar rules she holds near and dear to her heart.

With 25 years of experience in property management, Jennifer brings a wealth of expertise to her Sr. Portfolio Advisor role. As the membership committee chair for the Pennsylvania NARPM chapter, she is committed to fostering professional growth and connections. Jennifer enjoys building relationships with both property owners and tenants, ensuring smooth and successful management experiences. Outside of work, she loves traveling and spending quality time with her family.