Marci Mainieri

St. Charles

6149 Mid Rivers Mall Drive
St. Charles, MO 63304

Office Phone: 636-720-1100



                            START YOUR SEARCH NOW WITH ME…

Our company, Select Properties, when formed in 2002, was created to keep our local market. . . well. . . local. St. Louis is our hometown. We grew up here. We live here. We work here. Who knows, you and I may even be neighbors.

The thing is, I know St. Louis and all the surrounding counties. I know its neighborhoods – we go to the Hill for Italian, hit the Loop for people watching and know Dogtown is the place to be on St. Patty’s day.   We were here when the Arena went down and can remember when Wildwood was actually country.

We know its quirks. Our favorite summer treat is handed to us upside down too. We can correctly (ahem or should I say incorrectly) say Gravois, Chouteau and Spoede.

But most of all, I know its market . . . because I live in the market, specifically St. Charles County.  Our decisions are made based on the same trends that your family experiences right down the street.


Select Properties, formed in 2002, now has 10 offices in the St. Louis Metropolitan area, which includes 2 offices in St. Charles County, 1 office in Lincoln and 1 office in Jefferson County… representing over 550 agents. My Office ranks #1 in the entire company.  We're ranked #26 in the Berkshire Hathaway HomeServices national network, ranked #2 in the St. Louis Business Journal Book of Lists of Top Real Estate firms, #2 in real estate transactions recorded by the St. Louis Association of Realtors and in the top 20% of real estate firms nationwide. We rank as the #1 locally-owned real estate firm in St. Louis.   Maryann Vitale, Deb Colburn and Angie Ignatowski share ownership of the company, ranking #18 in Women Owned Companies by the St. Louis Business Journal.

Our Mission, Our Vision, Our Values

To provide the highest quality real estate brokerage service to my clients and customers and to be recognized in the community for high standards and ethics.

My guiding principle is simply doing the right thing every day to earn the trust and respect of each other, my clients and customers.

At Select Properties we put honesty, morality, and ethics first. We value providing service to our customers, clients, and each other in the real estate community that out-performs expectations. We also provide a positive environment that is based on faith and principle which rewards commitment to excellence and contributes to the personal growth of the individual and encourages life balance.

Ask Marci Mainieri


Being a first time home buyer and new to the whole process, Marci took the time to explain everything so I was knowledgeable to make the right decisions. She helped guide us through each step. Marci was acceptable to our thoughts and needs while being firm when she needed to be. She was always there, not only prior to the closing but post sale as well. My family and I have an amazing home thanks to Marci!

- Nick Brown, Wentzville

An incredibly smooth sale with great recommendations by someone that is overly trustworthy. I will never use anyone else!

- Emily Mainieri

The absolute BEST and a pleasure to work with!!

- Emily Mainieri, St. Peters, MO

I can not recommend Marci enough. Her knowledge, eye for detail, friendly personality, accessibility and calming demeanor helped us through some stressful moments. The sale of our house could not have possibly gone any better. Marci is amazing!

- Chris Huntley, St. Louis

Marci's staging plan was very helpful. Her open houses were successful. Marci is very detail oriented. I would recommend her to a friend who is wanting to sell a house.

- Richard and Margaret Rohn

Marci Mainieri's experience showed from day 1. She was confident in her sales plan and gave us a retail price that we thought we could get. She was very rehearsed in how the process would go and made every step of the way as easy as it could be. Her communication was great and she made her self available no matter the time of day. If you want to sell your house quick and for top dollar, I highly recommend using Marci Mainieri for your next home sale.

- Andy Malpocker St Carles, MO

Marcie is diligent and dedicated to get a house sold. She has a great sense of what needs to be done to sell a home fast.

- Monty Griffin, Springdale AR

Marci was extremely helpful from the beginning of our search to closing. She was accommodating (keeping in contact) even when she was out of town! We appreciated her timely advise on the purchase, as we went back and forth to make the purchase work.

- Jim Miller Weldon Spring MO

When it came time to purchase my first home, Marci was the only person I knew I could trust. She has sold and helped purchase all of my (multiple) childhood homes. I have known Marci my entire life, but this was my first experience working with her in a professional capacity. I had very strict parameters (price and school district) and she took my family's needs to heart. Marci is so knowledgeable and demonstrated professionalism and a superior work ethic. She never left my questions unanswered and always responded promptly (even well after reasonable working hours). Marci made viewing multiple homes so much fun. She is such an upbeat, energetic person and I'm secretly bummed we're not out looking at more houses together. I knew she was good, but she truly went above and beyond. Marci has established an amazing network of professionals in the realty industry who also went above and beyond. She was on top of everything throughout the entire process and I never felt as if anything 'slipped through the cracks'. I expected this process to be a nightmare, honestly. Marci and the professionals she referred me to made buying our home a breeze. Thank you, Marci. We found our dream home and we couldn't be more grateful to you!

- Ashley - St. Peters, MO

Marci Mainieri was an amazing agent to work with. She paid close attention to our desires and held those with high importance. She was professional and handled the negotiating process with comfort and ease. Marci was available 24/7 with any questions or concerns we had. I would recommend Marci to anyone looking for a knowledgeable and trusting agent! She found us our dream home, in just a short amount of time. Thank you so much Marci!

- St.Peters, MO



Marci was great! She was on top of everything all the way through!

- Ben Pezold, St. Charles, MO

Marci is the best realtor I have ever dealt with. I needed to move into assisted living over a year ago and we held onto the house just in case I wanted to move back. My son selected Marci and was familiar with her work. Our goal was to sell the house before the end of the year and that goal was met.

Marci understands what needs to be done to sell your house. When my son first contacted her she stressed the importance of making a good first impression. She looked over the house and gave us a checklist of items to complete before listing it. There was one item on the list that we did not complete before listing ... and it was an item that came up during the sale ... so her advice is spot on. When the house was ready to list, she brought some of her own stuff to stage the house. It looked beautiful. She hired a professional photographer to take pictures and posted them on the internet so my son was able to show them to me. The house looked better than it did when my husband and I bought it 20 years ago. The colors she selected were beautiful. It made me miss my old house ... but it was time to move on.

The house sold to the first person that looked at it and they paid the asking price that was recommended by Marci through her research. I didn't know the value had increased that much and was very happy with what we sold the house for.

Overall, we really appreciate Marci. She is simply wonderful.

- Joanne Lines, Saint Charles, MO

Marci Mainieri did an exceptional job analyzing and resarching the very difficulty market where the property was located. Her communication and attention to detail was stop notch and would I highly recommend to any.

- Stephen Hankins, Defiance MO

Marci was ethical and really helped out throughout the closing process. This was great since I had already moved out of the property. Marci was very flexible with her schedule and empathetic to my situation. I would highly recommended Marci as a buying, or selling agent.

- Jason Hartbarger; Rock Hill, MO

We had no idea what to expect with this whole process. We feared it would take a long time to sell our home or that we would not get what we needed out of it. Marci blew us away with all of her work especially the staging and photos of the home. We had a full asking price offer the first day the house was on the market. We couldn't be happier.

- Brad Morris, Wentzville