About
Community Management Group was born in South Seattle when partners Nick Cebula and Patrick McDonald purchased a small community together in 2016. What started as a single park has grown into a portfolio of 30+ manufactured housing and RV communities spanning six states, including Washington, Idaho, Montana, California, Oregon, and North Dakota.
CMG is actively growing and always looking to expand into new markets. We approach every acquisition with a win-win mindset, working with sellers who want to see their communities land in good hands, while delivering quality, affordable housing that residents are proud to call home.
Our mission has stayed the same since day one: provide housing that is safe, clean, well-managed, and truly affordable, because every resident deserves a great place to live.
Nick Cebula
Nick is a Seattle native, Washington State University graduate, and experienced real estate investor. Before moving into real estate, he spent 12 years managing and developing a diverse workforce in the medical industry. Nick co-founded CMG Parks in 2016 and has grown it into one of the leading manufactured housing operators in the country.
Having owned and operated over 30 manufactured housing and RV communities across six states, Nick brings a depth of experience that few operators can match. He heads CMG’s acquisitions efforts and can quickly assess manufactured housing projects, evaluate turnaround plans, and analyze future growth potential. Nick has built a reputation in the industry for doing business the right way, leading with honesty and approaching every deal with a win-win mindset. His consistent follow-through and straightforward communication have earned the trust of sellers, partners, and peers alike, and he remains committed to providing residents with safe, enjoyable communities that meet their affordable housing needs.
Patrick McDonald
Patrick McDonald is the co-founder CMG Parks, building the company alongside partner Nick Cebula from the ground up into a 30+ community portfolio across six states. A Washington State University graduate with a Bachelor’s Degree in Business Marketing, Patrick spent 12 years in personal financial planning before turning his passion for numbers, real estate, and business strategy into a full-time pursuit.
Patrick is known for thinking outside the box, finding creative solutions to operational challenges, and never settling for how things have always been done. His analytical approach drives the systems and processes behind CMG’s performance and growth, and he brings a hands-on perspective to every asset in the portfolio. He genuinely loves the industry and is always eager to connect with other operators, swap ideas, and talk shop.
Beyond CMG, Patrick has served as an elected official in his hometown and remains a passionate advocate for expanding affordable housing access in Washington state.
Billie Abers
Billie is our Director of Property Management. She has 20+ years experience working in affordable housing property management. Billie provides leadership, direction and oversight for managers and others on the property management teams. Through training and development, she cultivates a culture of accountability, cross-department collaboration, personal initiative, high performance, and employee engagement.
Michelle Ruby-Sims
Michelle leads accounting and financial operations at CMG Parks, overseeing everything from investor reporting and compliance to the financial infrastructure that keeps our 30+ community portfolio running smoothly. She brings deep expertise in accounting, property management, and hospitality from her time with Hines, URG, and Goodman Real Estate.
She holds two Bachelor’s degrees, in Accounting and Business Administration with a specialization in Supply Chain Management, and has a well-earned reputation as the spreadsheet expert on the team. If there’s a financial problem to solve, Michelle’s already built the model for it.
Tina King
Our Director of Home Sales, Tina, is a seasoned professional with a wealth of experience in property management and a strong foundation in business management. With a Master’s Degree in Business Management from WGU, Tina brings a strategic mindset and leadership skills to the table. Armed with Washington State and North Dakota managing broker’s licenses, Tina has amassed over 15 years of hands-on experience in the property management field. Tina approaches each task with dedication and a commitment to excellence, consistently delivering optimal results for clients.
Outside of the professional realm, Tina finds joy in exploring the world through travel and cherishing moments with family. Whether embarking on new adventures or simply enjoying quality time together, these experiences fuel Tina’s passion for life and inspire continual personal and professional growth.
Isabel Moreira
Isabel serves as Executive Assistant to Nick and Patrick, where her role extends well beyond traditional EA work. She supports ownership across a portfolio of 30+ manufactured housing and RV communities, managing everything from acquisitions and transaction management to HR, entity compliance, and contractor management across six states.
Isabel brings hands-on experience in real estate transactions, investor relations, and multi-state regulatory compliance, making her a key part of the team behind CMG’s continued growth. Isabel is passionate about affordable housing and children’s access to education, sports, and the arts.