Marnie Long

Top Producing Real Estate Expert In Northern Colorado

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Seller Services

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Buyer Services
Marnie Long

Meet Marnie

Broker Associate / Owner

I am doing what I love to do! For the past 29 years, I've been fortunate enough to help hundreds of families with their real estate needs. I strive to provide superior real estate service to help my clients establish and achieve their real estate goals. I'm grateful for the relationships I've built along the way and I look forward to the opportunity to serve you.

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MY CLIENTS SAY IT BEST...
This review is long overdue as we’ve had quite the year relocating out of state, but after the hard work and guidance that Marnie provided to us in selling our home in Timnath, we would be remiss to not thank her. Marnie is an expert professional who worked hard for us right as the the market was beginning to turn against sellers in 2022. We researched many agents and brokers in the area and interviewe...

— Brian W.

MY CLIENTS SAY IT BEST...
It’s not fair to group Marnie with other 5-star reviews. She is far and away a cut above everyone else. We previously listed our home with Zillow’s top agent in the area and, after 4 months of sub-par performance, we turned to Marnie who sold our $1 million+ home in less than 2 months at our target price. I originally thought saving 1% with the other agent would be a good idea but you get what you pay fo...

— Alan & Fiona J.

MY CLIENTS SAY IT BEST...
Marnie provided excellent service and support. She was available whenever we had questions or needed assistance. Marnie and her staff go beyond just the homeowner/Realtor relationship. We would definitely recommend Marnie and The Group.

— Gordon & Nancy M.

MY CLIENTS SAY IT BEST...
Marnie is incredible! She has been our family’s Realtor for years and we wouldn’t use anyone else. She is intelligent, hard-working, dedicated and is VERY GOOD at her job. She takes the stress out of the experience and shares ALL of the joy and excitement with you :) After following her advice on our house, coupled with her creation of a selling frenzy with her multiple marketing and promotion recourses,...

— Jason & Amie T.

MY CLIENTS SAY IT BEST...
I cannot speak highly enough of Marnie Long and how well she led our family through the process of marketing our home. From our initial planning discussion all the way through post-sale, Marnie was with us every step of the way. Marnie’s fact and data-based approach to the business is very refreshing. Not only does she display a deep understanding of the marketplace and technical nuances of the business,...

— Jayson & Carol P.

MY CLIENTS SAY IT BEST...
Whether you are relocating to the area, or live locally, Marnie is the agent you need. She knows the ins and outs of not only the local market but follows real estate trends nationwide. She is an expert at all stages of the buying/selling process, makes impactful recommendations to help sell your home, and is one step ahead of any potential issues that may arise. We have worked with Marnie multiple times...

— Heath & Jessica W.

MY CLIENTS SAY IT BEST...
Marnie Long, and her assistant Mara Wissman, were excellent at helping us find the right home for us. Moving from out of state made it more challenging, yet Marnie took time to answer our many, many questions to steer us to the best choices that matched out needs. She did live video home showings with us watching and talking it through when we could not be there. She took time to listen and ask probing q...

— Paul & Teressa C.

MY CLIENTS SAY IT BEST...
Marnie is wonderful! She worked hard to oversee a smooth and successful transaction! I appreciate her effort and would highly recommend Marnie to anyone! Thank you!

— Patty B.

MY CLIENTS SAY IT BEST...
Marnie and her crew are very responsive and knowledgeable about the home-buying process.

— Zachary & Whitney A.

MY CLIENTS SAY IT BEST...
You were always there for us; conscientious, caring and sensitive to our needs and concerns.

— Bob & Karen

MY CLIENTS SAY IT BEST...
Marnie has been great to work with and was able to find a house we bought at a price that we liked.

— Edwin & Anita N.

MY CLIENTS SAY IT BEST...
Thanks for helping us price the house well, looking out for us through the process, and representing us at the closing. That’s a lot to thank you for.

— Kenneth & Deborah G.

MY CLIENTS SAY IT BEST...
You did an outstanding job! Bill and I depended on you throughout this process. You were honest and went the extra mile to help us.

— Bill & Norma

MY CLIENTS SAY IT BEST...
Marnie was great throughout the whole process. Knowledgeable, direct, and watchful for our best interest and needs. She is a good listener who acts on what she learns.

— Charles & CJ T.

MY CLIENTS SAY IT BEST...
Excellent service and very knowledgeable. Gave very good advice and helped us through every step of the process. Highly recommend it without reservation. Helped us buy and sell previous homes.

— Mike & Viola R.

MY CLIENTS SAY IT BEST...
From day one we knew Marnie was the right choice we made for selling our home. She proved to be a great realtor and a very nice person. When she put together our plan of attack for a listing time to a listing price she listened to our needs and concerns. She kept us informed throughout the process and made it happen. We couldn’t have been more satisfied with the sale of our home. With her contacts, our h...

— Art & Carol N.

MY CLIENTS SAY IT BEST...
I highly recommend Marnie Long. Marnie handled our rather complicated sale and purchase of our prior and current homes with admirable ease. She handled every aspect and detail seamlessly and made the process seem effortless. She has vast knowledge & expertise derived from years of experience and is one of the top realtors in Colorado and in the top 2% of realtors nationwide. She has a stellar reputation,...

— Sue F.

MY CLIENTS SAY IT BEST...
Very knowledgeable and skilled. She really shows she cares, and works hard for you. She tries to make the whole process as easy as possible. I highly recommend her to anyone looking to buy or sell a home.

— Chad C.

MY CLIENTS SAY IT BEST...
Marnie is an excellent Realtor. Her communication was excellent throughout the process. I appreciate everything she did for us and helping us find a dream home. I would highly recommend her to anyone looking for a home.

— Joseph & Leda S.

MY CLIENTS SAY IT BEST...
We have recommended Marnie Long to several family members who were very pleased with her services. We wouldn’t consider having anyone else as our Realtor. If you want to sell your house, Marnie is the one to do it!

— John & Becky T.

MY CLIENTS SAY IT BEST...
Marnie was an absolute joy to work with. My wife and I are fortunate to have had Marnie in our corner during the selling process. Through her support, guidance, and expertise, we got the result we were hoping for. Highly recommend Marnie to anyone.

— Erik E.

MY CLIENTS SAY IT BEST...
Marnie was the consummate professional during the selling of our home and the purchasing of a new home. She educated us and kept us informed so we could make good decisions. She handled every issue that arose and made the entire process smooth and stress-free.

— John K. & Susan L.

MY CLIENTS SAY IT BEST...
Marnie is the most efficient and productive realtor you could ask for. Her knowledge of the entire real estate market and of both buyers and sellers is unmatched. Most importantly she is kind and warm and makes it feel personal, not just a business transaction.

— Sam & Kelly S.

MY CLIENTS SAY IT BEST...
Marnie was awesome to work with throughout the selling process! What differentiates her from others is her attention to detail and follow-through. Marnie is professional, experienced, and passionate about her work. Thank you for all you do to make the process seamless!

— Jodi A.

MY CLIENTS SAY IT BEST...
Marni was spot on with being our real estate agent. She executed such an efficient process for us, especially since it was a very quick listing and a sale all within 3 days! Kept on top of all items that needed to be completed and stepped in when required. Since we were out of town most of the time during escrow she personally made sure all items were complete to fulfill the sale of our home.

— Alexandra D.

MY CLIENTS SAY IT BEST...
Marnie Long is the best and she was there every step of the way (it took about a year). We had very specific details we wanted in our next home so the odds were against her and she worked tirelessly to find our hidden gem. Marnie was thorough and professional and she was always on top of things. And when we found our diamond in the rough she put the for sale in our current yard and sold it within 48 hours.

— Brenda V. & Mary P.

MY CLIENTS SAY IT BEST...
Marnie represents all the qualities one would look for in a real estate agent. Very personable and quick to understand what you are looking for in a home. She listens to what you say and gives you exactly the information you ask for. She keeps the process fun and positive.

— Ron & Diane S.

MY CLIENTS SAY IT BEST...
Marnie is a true professional. She's trustworthy, responsive, pragmatic, and sold our home within 48 hours. Her marketing is top-notch and made all the difference, with a team that descended immediately to stage, photograph, and video our home. Highly recommend this brilliant lady!

— Katie B.

MY CLIENTS SAY IT BEST...
I think Marnie Long did a great job in finding us a house that fit the style and price we wanted in a tough market. She also did an admirable job in selling our older home. I was disappointed in the Group, however, as very few of the showings of the house we sold were from Group Realtors.

— Edwin & Anita N.

MY CLIENTS SAY IT BEST...
Marnie is an excellent Realtor. She is very professional and knowledgeable. She sold our previous home and worked with us when we built our new home. She was involved in the whole process and was extremely helpful. Marnie cares about her clients and works really hard for them. We highly recommend her and consider her a friend.

— Jerry & Loma M.

MY CLIENTS SAY IT BEST...
Marnie made our dream home-buying experience very smooth. She was always available and provided great guidance along the way. Her recommendations on how to approach the offer ensured we were able to secure the deal. Her referrals for various services were extremely helpful and was able to provide multiple options for us to compare.

— Jill & Philip L.

MY CLIENTS SAY IT BEST...
Marnie is awesome! She’s very knowledgeable and straightforward with all the information she has on your property! She’s very experienced and has a long list of resources at your disposal, but you won’t need them! She’s very thorough with everything she does which makes it very easy! The whole process was great and effortless on my part! 1,000 out of 10 recommend it!

— Jory H.

MY CLIENTS SAY IT BEST...
Marnie is an exceptional realtor and an even better person. She is genuine, very knowledgeable about the area, and has a phenomenal network that is beneficial when buying or selling a home. Marnie helped us find a home and neighborhood we love during a time when there weren’t many options. I highly recommend Marnie and am confident you won’t regret working with her.

— Cameron & Hillary H.

MY CLIENTS SAY IT BEST...
Marnie helped us find and purchase our home and she was absolutely fabulous! She knows the market well, provided excellent advice both in terms of our purchasing process and home preparation for selling our existing homes. If you’re looking for a highly experienced, knowledgeable, professional, and polished real estate agent, look no further. You have found the best in Marnie Long!

— mjmlshop

MY CLIENTS SAY IT BEST...
We have just completed our 4th transaction with Marnie over the past 12 years. We would never consider using anyone else nor can we imagine anyone being better in the profession. If you want someone who is going to get the job done, professional, attentive to details, proactive, responsive, a wealth of knowledge, and fun to work with, then use Marnie for your real estate needs. You will not be disappointed.

— Lisa & Quinn S.

MY CLIENTS SAY IT BEST...
Marnie is the consummate professional. She provided detailed local knowledge and specifically catered to my experience with our work, children, budget, and personalities. She provides critical insight into properties that we would have otherwise overlooked. Somehow paradoxically, she is tough nails as a negotiator but at the same time is completely approachable and genuinely friendly. It is a unique thin...

— Bob R.

MY CLIENTS SAY IT BEST...
Marnie is a fabulous agent who was recommended to us by a friend, who also bought a house with Marnie. She is friendly, always available, and very knowledgeable. She knew all about the area and helped me decide what was the best place for our family. She knows a lot about the school systems, which was very important to me. I am so excited about our house. I would recommend Marnie to everyone!

— David P. & Nicole H.

MY CLIENTS SAY IT BEST...
Marnie was an absolute pleasure to work with! From start to finish, her expertise radiated. She took on our property, which was unique and also pushed the top price point in the market. With strategic marketing and advertising, while tapping into her network, she had our house in escrow in 3 weeks- multiple offers, over the asking price. If you’re looking to buy or sell property in Northern Colorado, you...

— Tyler B.

MY CLIENTS SAY IT BEST...
We met Marnie through a friend who also bought a house with Marnie. Marnie is friendly, and knowledgeable, and helped us find the best house for us in the area. She was always available to talk. I was not sure what I was looking for at first, and she helped me narrow down my choices. She knows a lot about the schools in the area, which was very helpful. I know that when we look again for a house, we will...

— Buyer

MY CLIENTS SAY IT BEST...
I am a 38-year veteran of the home-building business here in Colorado. I have worked with Realtors up and down the front range throughout my career and could have my choice of representation for my company but to me, there is no other choice. If you want someone who will put your interests first and their paycheck second Marnie is your gal. Her knowledge and professionalism are unsurpassed and it has bee...

— Stephen F.

MY CLIENTS SAY IT BEST...
Marnie Long was wonderful to work with! My family has used Marnie for years, so when I was looking to purchase my first condo, I knew exactly who to go with. She always made sure that I understood what was going on and the overall process. I also was able to contact her very easily whenever I had questions and received quick replies. I know that from day one she had my best interest and was looking out f...

— Lili G.

MY CLIENTS SAY IT BEST...
Working with Marnie Long was a really great experience. She is a very genuine person. The sale of our home exceeded our expectations due to Marnie and her team’s expertise. She was always available and made sure all our needs were met. When I began to wonder if I had made a mistake selling Marnie calmly walked me through all the reasons we were selling and the positives that were ahead of us. She did a g...

— Bill & Sue N.

MY CLIENTS SAY IT BEST...
Marnie and her team could not have been more professional, more personal, or more organized. She gave us a more detailed market analysis than any other agents we spoke with, and did a complete walk-through of the entire property, and a “to do” list that helped us maximize the value of our home. In addition, Marnie and Robert kept us informed during every phase of the sale; we were under contract for 7 da...

— Stephen H.

MY CLIENTS SAY IT BEST...
We are so glad we enlisted Marnie’s help with the purchase of our home. Marnie stuck with us through the ups and downs of our unique situation and kept us staying positive in a difficult market for buyers. Both she and Mara communicated with us throughout our search and never tired when showing us house after house. Marnie prepped us so we were ready to make an aggressive offer when the time came and onc...

— Honora T.

MY CLIENTS SAY IT BEST...
Marnie is an incredible realtor, and we could not be happier with the service she provided as we searched for and purchased our new home in Fort Collins. She is smart, professional, always thinking two steps ahead, a genuinely good person, and a pleasure to work with. We relocated here from the East Coast, and her depth of knowledge regarding Northern Colorado and the real estate market was valuable to u...

— Ian L.

MY CLIENTS SAY IT BEST...
Marnie was able to understand what we were looking for in a phone conversation and a short meeting in her office. We actually bought the first place she showed us, after considering other properties. It was a property that had not yet been listed, but she knew about it through discussions in her office. While we had purchased 14 homes in the past, we were not familiar with the specifics for Colorado. She...

— James B.

MY CLIENTS SAY IT BEST...
Marnie was so awesome! Very professional, knowledgeable, and fun! We took the plunge and bought a house "sight unseen" from across the country and Marnie was helpful with communicating with us including making special trips to the property to FaceTime with us. She was responsive to calls and texts about concerns during the closing process and her assistant Mara is really good, she helped us find a rental...

— Scott & Erin C.

MY CLIENTS SAY IT BEST...
My daughter and I had the pleasure of meeting Marnie when we were searching for a home in the Fort Collins area. We are from California and my daughter was looking for housing while attending Colorado State University. She was extremely helpful in steering us in the right direction and through the process of purchasing a home in Colorado. Since I was unfamiliar with purchasing property in Colorado, Marni...

— Patricia N.

MY CLIENTS SAY IT BEST...
We recently sold our house with Marnie and can't say enough great things about the process and the outcome! We had poured a ton of love and time into the house so selling it was bittersweet. But Marnie was sensitive to our sentimental attachment to the house and never pushed us into doing something we weren't comfortable with. In the end, we were able to sell to a family that absolutely loved the house a...

— Erin H.

MY CLIENTS SAY IT BEST...
Marnie and her team were fantastic to work with. We looked at several houses and Marnie was particularly good at checking in with my wife about her preferences and making sure both of our needs were met. She provided a welcome perspective on how each property may function with our growing family. Once the house we felt strongly about came on the market Marnie was able to move very quickly and work with u...

— Royce Q.

MY CLIENTS SAY IT BEST...
As someone who has been in the real estate industry, both in title and mortgage lending, for the past 16 years, I have had the opportunity to experience many real estate relationships and lending relationships. Marnie Long is a class act. She is highly knowledgeable as a real estate agent, very professional, fun to work through details with, and knows the industry at a high level. Her commitment to takin...

— Dustin C.

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Active Listings

For Sale

3687 Tall Grass Ct
$2,995,000

3687 Tall Grass Ct, Timnath, CO 80547

  • 5 BEDS
  • 7 BATHS
  • 5,624 Sq.Ft.

For Sale

6027 Wild View Dr
$2,725,000

6027 Wild View Dr, Fort Collins, CO 80528

  • 6 BEDS
  • 6 BATHS
  • 8,843 Sq.Ft.

For Sale

6009 Fall Harvest Way
$660,000

6009 Fall Harvest Way, Fort Collins, CO 80528

  • 3 BEDS
  • 2 BATHS
  • 1,906 Sq.Ft.
View All

900+

Houses Sold

Top 1%

Top Producing Real Estate Professional at The Group Inc.

5 ★

Rating on hundreds of reviews

Work With Marnie

Whether you're buying or selling, new construction, or resale, you can be confident that Marnie has the knowledge and expertise to get the job done right. She is proud to consistently be ranked in the Top 1% of Real Estate Agent Nationwide and ranked as one of the top producing Real Estate Agents in the state of Colorado.

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Contact Details

Marnie Long

(970) 481-8613

[email protected]



2803 E Harmony Rd
Fort Collins CO 80528