Find an Agent
United Real Estate Horizon - Warrenton
Loni Colvin Principal Broker
Robin Montessi Agent
Christine Daley Agent
Christine is a licensed Realtor with United Real Estate Horizon in Warrenton, Virginia. Christine strives to help her clients buy or sell the "perfect home." She has been a Realtor for 14 years. She is originally from Alexandria, Virginia but has resided in Culpeper, Virginia with her partner Michelle for the last 21 years. She has a Doberman "DeziLou" and a bunch of nieces and nephews.
She does her best to ensure that her clients are 100% satisfied, no matter if they are buying, selling, renting or looking for that perfect piece of property to potentially build on. Their satisfaction with the end result is her top priority. She will go out of her way to find the best pricing for her clients based on market value. She can also assist with finding a great lending company to help with their transactions. She truly loves helping her clients with whatever real estate purchase or sale they have in mind! The end result, seeing the clients with smiles on their faces is what pushes her in the industry.
Be sure to call her today to so that she can help you start on your next "life chapter." 703 303-3620 Or email her at christinedaley66@gmail.com. She can't wait to hear from you!
Rebecca Clifford Agent
I am very good with buyers and sellers I am a mother of 5 and have 6 grandkids I also own a construction company as well and can help in all ways when finding the perfect home
Jennifer Warnock Agent
Jennifer "Jen" Warnock has lived in Virginia for nearly 30 years. She has lived in various DC Metro neighborhoods and in 2024, bought a home in the Shenandoah Valley.
Jen has extensive knowledge and insight into the I-66 corridor real estate market, neighborhoods and trends.
She is an alum of George Mason University and also studied at Oxford University (U.K.), graduating with a B.A. in English and a Theatre minor.
Through her career, she has worked in a variety of private financial and real estate sectors, in different roles which have included contract administration for commercial property builders/property managers. In that particular role, she wrote a commercial lease for a 2,000,000 square foot industrial property in Lorton, Virginia. Jen has also worked as an Executive Assistant at CCRE ( a derivative of Cantor Fitzgerald) to Mike May, the former head of Multifamily at Freddie Mac.
After working for fifteen years in the corporate world for generals, politicos and Secretaries of State, Jen opened her first business in 2018. Jen opened CRITTER CREW CARE, a professional full service pet sitting and training company that served hundreds of clients in Northern Virginia. In early 2026, she began working full time as a Realtor. With her, Jen brings her financial background and her business acumen to the Real Estate profession.
Jen believes buying and selling can be fun with the RIGHT agent! She is knowledgeable, committed, responsive, anticipatory and advocates for her clients EACH step of the way. She prides herself on professionalism, quick turnaround and attention to detail.
While she loves all aspects of real estate, her particular interests include historic homes and homesteads and assisting first time home buyers.
When not working, Jen has spent time performing on the DC Stand Up Comedy circuit and is an avid outdoorsman. Jen's hobbies include photography, gardening, DIY projects, scuba diving, and hiking with her dog.
Donna Bowe Agent
As an active, local agent, I am available to address all of your real estate needs.
Brett Boyce Agent
Brett Boyce is a real estate agent with United Real Estate Horizon. He is passionate about helping people find their dream home. Brett grew up in Amissville, Virginia, where he and his wife also raised their two boys. As someone who has lived in the area for over 40 years, Brett has had the privilege of witnessing the change in the surrounding counties of Fauquier, Culpeper, and Rappahannock. Brett spent his youth and early adult life renovating houses. He always had a dream of becoming a real estate professional and home builder. To this day, there is nothing more rewarding to him than seeing the day that a client moves into their new home!
Brett is a Class A General Contractor, and the owner of Argent Home Builders. He has extensive knowledge of new home construction, land development, and local building and zoning requirements. This extensive knowledge, combined with his intimate familiarity with the area, helps make him the ideal real estate professional.
As a local business owner, Brett has had the opportunity to develop extensive relationships with a team of professional service providers. These relationships can help with needs that may arise in any aspect of selling or purchasing a home. He thoroughly loves his work, enjoys the many people that he meets, and the clients that he has the privilege of working with. These clients who soon become neighbors and friends.
Michael Cain Associate Broker
Bradley Clarke Agent
Kathy Davis Agent
Timothy Ernst Agent
Sheila Farmer Agent
"Never regret a day in your life; good days bring happiness, bad days bring experience, worst days bring lessons, and the best days bring memories. Don't forget to share a smile."
I am a proud member of the National Association of Realtors and have a commitment to excellence in real estate. If you or someone you know is interested in purchasing, renting, investing, or selling real estate, please call me today at (540) 359-5703, or email me at SheilaFarmer@ymail.com.
Visit my website at www.SheilaFarmerRealtor.com for more information.
I have been with United Real Estate – Horizon located in Warrenton, Virginia since I received my license in 2014, and could have not found a better or more honorable company for which to work for and with. My license covers the Commonwealth of Virginia, and I will travel to accommodate my clients. My passion and knowledge for real estate stem from my parents, Bill and Pauline. I watched them work together to remodel a 1900’s farmhouse, a true fixer-upper! My parents had a vision and a dream; a home to raise me and my siblings, a place for family gatherings with grandchildren, grandparents, family and friends. I witnessed my parents' labors of love, they worked day-in and day-out, nights and weekends, to create what became their “forever” home. Cherished memories and many more to be made. I have wonderful memories of growing up in that home and the neighborhood. Thank you, Mom and Dad, for your passion, respect, love, and especially for working so hard to provide unconditionally for your family.
With over 30 years of experience in public service and real estate, I bring a wealth of knowledge and a personalized approach to every transaction. My deep understanding of the Virginia market ensures strategic pricing, effective marketing, and successful negotiations. I specialize in serving clients who are looking to buy, sell, or rent property in Virginia. I have a comprehensive understanding of the market and am skillful in strategic pricing, marketing, negotiations, and contracting. My clients are my number one priority. It is all about what is in your best interest. I am here to help you every step of the way.
As a Realtor Extraordinaire, I will provide you with a professional and trustworthy experience. Straightforward and honest with experience and satisfied clients. You will receive a 100% commitment from me. I am dedicated to providing you with the highest level of personal service, not only for today but for a lifetime.
Your satisfaction and subsequent referrals are the core of my future business. I look forward to meeting with you and helping to accomplish your goals.
I am dedicated to providing you the highest level of customer service possible. I am accessible to clients and I look forward to meeting and helping you to accomplish your goals!
Never regret a day in your life; good days bring happiness, bad days bring experience, worst days bring lessons, and the best days bring memories. Don't forget to share a smile.
Visit me at my web-site: www.SheilaFarmerRealtor.com
Facebook at facebook.com/sheila.farmer.984 or
www.linkedin.com/in/sheila-farmer-817058177
Amy Fincham Agent
I have been a Licensed Realtor since 2017.
I enjoy assisting in my clients journey in selling and purchasing property.
Everyone needs to FIND THEIR FREEDOM.
Cathy Fulton Agent
Data-driven strategy. Stronger outcomes. More money in your pocket.
Strategy. Leverage. Results.
Northern Virginia Real Estate Advisor
In a market where precision matters, Cathy Fulton delivers a level of strategy, insight, and execution that consistently sets her clients apart.
With over 12 years of experience across Northern Virginia, Cathy advises both sellers and buyers with a clear philosophy: real estate decisions should be driven by data—not emotion—and hope is never a strategy. By grounding every recommendation in concrete market data, buyer behavior, and pricing analytics, she removes uncertainty from the process and replaces it with clarity, confidence, and control.
Cathy serves clients throughout Loudoun County and has successfully represented transactions across Fairfax County, Arlington County and Alexandria City. She is highly experienced in navigating complex and transitional situations, including downsizing, upsizing, probate, and divorce—where discretion, structure, and strong advocacy are essential.
Cathy is not neighborhood-specific in her approach—and that is by design. Her success is rooted in a data-driven strategy that allows her to quickly and precisely interpret any micro-market, identify buyer behavior, and position properties to perform. The result is consistent: homes are not left sitting—they are strategically positioned to sell in days, not months. Because in today’s market, outcomes are not driven by familiarity—they are driven by data, strategy, and execution.
For sellers, Cathy does not “list and wait.” She positions each home to become the obvious choice on the market, leveraging strategic pricing, targeted exposure, and proactive outreach to create demand and drive stronger outcomes. Her focus is singular: maximize value and put the most money possible in her clients’ pockets.
For buyers, Cathy brings the same level of discipline and strategy. In competitive environments, success is not accidental—it is engineered. From identifying opportunities to structuring offers that win, she ensures her clients are not just competing, but prevailing. Her approach is designed to ensure her clients maintain leverage from start to finish—whether buying or selling—so every decision is made from a position of strength, not reaction.
Cathy is not a discount agent, and she doesn't believe in cutting corners when real money is on the line. Her role is to deliver a strategic advantage—one that directly impacts her clients’ bottom line. When asked about commission, she poses a simple question: “What’s more important to you—paying the least, or putting the most money in your pocket?” Because the goal is not to reduce cost—it’s to maximize return on your invest
ment. Cathy’s approach is built around that principle, ensuring her clients walk away with the strongest possible outcome.
In 2025, Cathy was recognized as the top producer at her brokerage in a category of her own—a distinction that reflects both her results and the level of trust she has earned and has been a member of the MillionAires Club every year she's been an agent.
Known for her professionalism, negotiation expertise, and unwavering commitment to her clients’ success, Cathy Fulton is the advisor clients turn to when the outcome truly matters. When the outcome matters—and it always does—Cathy Fulton is the clear choice.
Skippy Giles Agent
Sandy Harris Realtor
“Making your home search
as rewarding as possible is what I do.”
As a licensed Realtor and Associate Broker, Sandy is ready to be your guide in the housing market. From start to finish, she is eager to assist from researching the best loan options to negotiating the best deal. Sandy stands out among other Realtors! Her clients appreciate her communication, honesty, and patience which have proven to be essential to her career. The decisions are yours to make, she is merely your professional advocate that will guide you through the entire process side by side. Sandy will fight for the highest and best deal for her clients with experience in both buyer’s and seller’s markets throughout the past decades. Once a contract is in motion, Sandy manages the details proactively to eliminate stressful surprises. Sandy’s dedicated loyalty and diligence are much appreciated by first-time and experienced buyers alike.
Sandy is a native of
Northern Virginia and has more than 20 years of sales and customer service
experience in the real estate market. She utilizes technology quickly and effectively
to ensure her clients are always on top of the market. She is also particularly
knowledgeable within the investment and foreclosure world. Along the lines of
“Real estate being the best financial investment you can make,” Sandy has
invested in foreclosed and distressed properties throughout Northern Virginia.
Sandy’s personal life is
shaped by her husband and their four sons. Two of them have attended JMU
(#GoDukes) and two are still in public school, reinventing how education looks
in this innovative time we live in!
Having grown up in this
area, she has close ties to her family and community. She enjoys participating
in activities at her children’s schools and sports leagues. She also enjoys
traveling with her family each season to enjoy other cultures, regions, and
events.
If you are ready to make
a move, or just have questions and want a private consultation, contact Sandy
Harris today as your trusted Real Estate Agent!
703-217-2468 cell
Kim Hawkins Agent
Gary Leake Agent
Roger Miller Agent
Regina Sharikas Agent
Heidi Silver Agent
Deyonna Smith Agent
Hi! I’m Deyonna, a Realtor proudly serving the beautiful communities of Virginia. Whether you’re buying your first home, upgrading to your dream space, or selling a place full of memories, I’m here to make the process smooth, stress-free, and even a little fun. I believe every move is personal — and every client deserves a process that feels right for them.
My role is to offer honest advice, helpful insights, and steady support while giving you the space to make decisions at your own pace. I’m here to make sure you feel informed, comfortable, and confident every step of the way. Real estate isn’t just about transactions to me — it’s about building relationships, understanding your unique needs, and celebrating your milestones together.
When I'm not working, you'll find me hanging out with my family, pretending my coffee is just as exciting as the donuts my kids are devouring. I'm also a big fan of video games, movie nights, and park visits — and of course, spending time with our sweet Pit Bull, who thinks she's a lap dog.
Let’s connect — I’d love to be a part of your next chapter!
Jens Tholand Agent
Roseann Willoughby Agent
Put my skills to work for YOU!
I am in the business of bringing Buyers and Sellers together to achieve their real estate goals. Real estate is one of my true passions. My CLIENT FIRST philosophy has always been my approach. When you hire me to represent you, you get nothing less than 110%!
Working as a team, we can sell your existing home; find and purchase your dream home; purchase that land parcel that may eventually be the site for your retirement home; or assist
you in finding the perfect rental and/or investment property. Whatever your need, I can effectively represent you in performing all these types of transactions.
Prior to becoming a Realtor, I worked as an executive assistant where duties such as processing paperwork, multi-tasking, schedule coordination, and problem solving have transitioned into my current real estate career. I am dedicated to client satisfaction. Honesty, integrity and strong work ethic are priority. I take great pride in providing personalized service and negotiation skills to ensure that YOUR next transaction will be a success.
Sellers: Is it time to make the Move??? I can offer guidance for YOU to make good choices. I can quickly determine the value of your home and provide you with a FREE report! No Obligation, No Hassle, just Great Information!
Buyers: I will be extremely proactive in finding the perfect home for YOUR needs. If I am unable to find an active listing that satisfies your home requirements, I will approach owners of unlisted properties that meet your criteria to find someone who may have an interest in selling. I don't sit and wait for a perfect home to come on the market; I approach homeowners in pursuit of YOUR ideal residence!
Get in touch with me today and get ready to MOVE!
First impressions are lasting impressions; you only get to do it once.
I look forward to working with you,
Roseann Willoughby
Member of:
National Association of Realtors;
Greater Piedmont Realtors
Kathy Davis Master Admin Office Broker