Mark Sensi, broker owner of ERA Martin & Associates in Chillicothe, Ohio, has spent more than 30 years building a people-first brokerage firm based on adaptability, consistency, and long-term thinking.
In 2025, his leadership was recognized with the ERA Gene Francis Memorial Award for Top All-Round Company, the highest honor within the ERA Network. I recently sat down with Mark to talk about how early discipline, intentional growth, and a deep respect for people shaped his career, and why those same principles are more important than ever in today’s market.
Q&A with Mark Cench
Alex: How did you get into real estate?
Mark: My path started early. When I was 12 years old, my stepfather, who owned a corporate brokerage, asked me what I wanted to do when I grew up. I said I wanted to go into real estate. He didn’t deny it. Rather, he treated it like a real promise.
That meant spending summers in the office, working after school, and doing whatever needed to be done to learn every part of the business. By the time I was old enough to get my license, I already understood how sales worked – not just sales but also responsibilities.
I took a real estate class between my junior year and my senior year of high school to help me get started right away. Eight days after turning 18, I passed the exam and became an agent.
From there, I purposefully considered my next steps. Becoming a broker in Ohio requires education and experience, so I enrolled in college right after high school and worked full time in the real estate industry while completing my coursework. By the age of 20, I earned my broker license.
Looking back, early discipline and structure taught me important things. Success in this business is not about speed, it’s about preparation.
Alex: ERA Martin & Associates was founded in 1989. When did you begin your leadership role?
Mark: I attended college from 1995 to 1999 and worked in the Chillicothe office. In 1997, we expanded to Athens, where our school is located. I managed the Athens office for two years and was able to gain early hands-on leadership experience.
When I returned to Chillicothe in 1999, I assumed a broader leadership role across the company. This transition taught me the difference between managing deals and leading people, and how the latter is more complex.
Alex: Did you have a mentor?
Mark: That’s right. My father-in-law, Wayne Martin, has been my mentor since day one. We worked together from the start of my career until his death in 2013.
What he instilled in me was not only how to run a brokerage firm, but how to treat people with respect, consistency, and accountability. Those lessons still guide my life.
Alex: How did you grow your company to nine offices and 135 agents?
Mark: Growth was no accident. We took note of the opportunity and acted at the right time. However, growth is never about pursuing scale itself.
Our goal was to build a company that could provide real value to both agents and clients: training, support, and stability. Growth allows us to reinvest in people, technology and leadership. When you focus on improving the experience for everyone involved in your organization, scale becomes a byproduct rather than a goal.
Alex: What has been the most shocking or surprising change in your 30-year career?
Mark: The biggest surprise was seeing the long-term results of consistent effort. In real estate, profits are not guaranteed right away. The decisions you make today may show their full impact for years to come.
That perspective keeps me grounded. I don’t take our success for granted.
When it comes to industry change, I’ve come to expect it. Real estate is defined by evolution. If you’re surprised by the changes, you’re probably not paying attention.
Alex: The last few years have been chaotic. How did we achieve double-digit growth?
Mark: Stay alert and be willing to adjust. I’ve seen companies struggle because they keep repeating what worked in the past without questioning whether it still fits the current market.
Rather than abandoning the basics, hone them. We listened carefully to agents and consumers, observed behavioral patterns, and adjusted our approach in real time. Growth came not from flexibility, but from reactivity.
Alex: What are your guiding principles as a broker owner?
Mark: It’s all about adaptability. One of my favorite quotes is from Charles Darwin. “It is not the strongest or the most intelligent who survive, but those who are most adaptable to change.”
Additionally, I believe that leadership begins with how you treat people. We are a people-first business. If you lead with care, loyalty, and respect, performance will follow.
Alex: What advice would you give someone entering the business today?
Mark: This career requires hard work, patience, and consistency. This isn’t a short-term play, but for those willing to put in the effort, it’s incredibly rewarding.
By combining hard-working agents with the right companies – companies that invest in them – we can build something truly sustainable.
Alex: What is the best advice you have ever received?
Mark: This is more truth than advice. What humans know about something is just a grain of sand on an endless seashore.
It reminds me that I don’t have to be perfect at everything. You have to show up every day focused on being the best version of yourself and keep improving.
Mark Chensi’s story reflects what the ERA Jean Francis Memorial Award for Top All-Round Company stands for: leadership built over time and grounded in service, adaptability and an unwavering belief in people.
In an industry that can be so easily distracted by short-term wins and constant noise, his approach reminds us that sustainable success still comes from the fundamentals: preparation, consistency, and treating real estate as a true profession.
At a time when change can feel relentless, Cenci’s career proves that those who lead with clarity and attentiveness don’t just endure disruption. They grow through it.
Alex Vidal is the president of ERA Real Estate.
