• Patricia McKelvey

    President and Founder

    Patricia is a native Saint Louisan whose family has been based in the St. Louis community for four generations. She is a licensed broker in Missouri and Illinois. She founded McKelvey Properties in 1988. She expanded the company to include a full staff and brokerage team and led them to become the #1 commercial real estate company in St. Charles County. She also has expanded the business to include a full service property management team.

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  • Derek Carroll

    Managing Director

    Derek has over 30 years of experience and comes to McKelvey with a strong background and history working in Sales and Operations.  Derek is skilled in negotiating, operations management, sales, and business development who graduated from our own St. Louis University.  With Derek’s strong connections and ties to the area he will engage and grow the brokerage team to new levels.

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  • Joi Niedner


    With 30+ years in sales, marketing, and business development, Joi Niedner empowers entrepreneurs by aiding fast-growing companies in real estate expansion and investment properties. Formerly the Business Development Officer at St. Louis Economic Development Partnership, she supported 900+ businesses in the St. Louis Metropolitan Region, demonstrating expertise in fostering successful growth. Beyond her institutional roles, Joi owned a professional sales and consulting business and served as Vice President of Communications for Emmons Title Company.

    Joi's commitment extends to the Executive Board for Compass Health Network and the Alumni Council at St. Charles Community College. A distinguished graduate with The Top 20 Alumni Award and commencement speaker at Lindenwood University, she seamlessly blends vast experience with a passion for driving success in business and real estate.

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  • Kim Richter


    Kim has been in real estate since 2003. She has been involved with every 

    area of real estate. She has expertise in commercial, residential, flipping, 

    and investment properties in the St. Louis metro area. She has closed large 

    volumes of leases and sales both locally and nationally. She prides 

    herself on her large referral-based clientele and ability provide 

    exceptional customer service. 

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  • Jane Kapp


    Jane is a seasoned professional with over 25 years in sales, marketing and business development in both Real Estate and Finance. She is a St. Louis native and attended the University of Missouri-St. Louis with emphasis in Education. Her background includes managing for both Wells Fargo and GMAC Mortgage, in addition to Residential and New Homes sales. Her emphasis is in new construction, having relationships with many builders, helping them to grow their business in a multitude of states.

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  • Dan Flaiz

    Investment Sales & Leasing Broker

    With a proven track record as the top leasing agent on the cornerstone account at Cushman & Wakefield, Dan now brings his expertise to McKelvey Properties where he focuses on empowering local investors and businesses through expert contract negotiation and financial analysis. Specializing in Office and Retail Leasing and Investment Sales, Dan leverages his skills to secure favorable deals and maximized returns for clients. Whether it's partnering with a Fortune 500 company or assisting a local business, Dan delivers results-driven solutions tailored to each client's needs.

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  • Jake Deters

    Investment Sales & Leasing Associate

    General Real Estate Appraiser

    Jake is a seasoned professional with four years of specialized expertise in commercial land sales and appraisal. With a robust background in the real estate industry, Jake has consistently demonstrated a keen understanding of market dynamics, property valuation methodologies, and negotiation strategies.

    Beyond his technical proficiency, Jake is recognized for his commitment to client satisfaction and integrity in all dealings. He possesses strong communication skills, enabling effective collaboration with clients, stakeholders, and industry professionals.

    As Jake continues to advance in his career, he remains dedicated to driving value and excellence in commercial land sales and appraisal, serving as a trusted partner for clients seeking expertise in navigating the intricacies of real estate transactions.

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  • Alysia Kerkove

    Vice President of Property Management

    Alysia specializes in tenant and vendor relations, leasing and construction coordination, marketing and event planning and day to day management of retail, commercial, office and warehouse properties in the St. Louis and St. Charles County markets. Alysia has over 20 years of experience in top level management. She carries a Specialty Leasing Designation from the International Council of Shopping Centers and her Missouri Real Estate License. She also is currently serving on the Board of Directors for BOMA.

    We are confident in Alysia’s ability to manage your property as if it were her own. Her vendor relationships and industry connections over her 20 years of experience set her apart. She has a steady pulse on both the team and properties that she manages.

  • Abby Allen

    Property Manager

    Abby has seven years of Commercial Real Estate experience on both sides of the industry. Over five years on the tenant end, servicing accounts for roughly 40 office buildings across North and South America. Two of those years were spent on the landlord end, servicing as an agent for ownership on over a dozen commercial properties in the St. Louis area. Abby has also dabbled in the construction Industry working on the back end of large-scale construction projects. Abby has a very strong work ethic and her attention to detail makes her a value add to the McKelvey Team.   

  • Katrine Hellauer

    Property Admin AR & AP

    Katrine is well versed in real-estate, having been in the business for 20 years - both residential and commercial. She handles our accounts receivable and accounts payable for all of our managed properties. She is also well-versed in collections on the rare case that they’re needed. Her background in business management gives her the oversight skills to ensure the job is done right. She loves building relationships with our tenants and vendors and making sure bill paying is an ease. 

  • Brian Vester

    Senior Maintenance Technician

    Brian has a decade of experience in maintenance & grounds with a background in carpentry and utility work. Brian provides interior, exterior, and preventative maintenance solutions by utilizing his attention to detail and organizational skills. Brian is continually looking for ways to cut cost for the company and save money for our tenants, clients, and owners.

  • Alec Lamparter

    Maintenance Technician

    Alec handles maintenance requests for properties managed by McKelvey Properties. He works under Bobby in day to day operations and ongoing facility maintenance. His training and experience help him to be able to spot future problems and provide preventative solutions.

  • Sara Curran

    Senior Accountant

    Sara handles the accounting for our brokerage transactions. In addition, she also handles the demanding accounting needs that come with property management.Every dollar is in the correct location because of Sara’s hard work. Trusting Sara is easy due to her diligence, background, and organization. Her attention to detail is one of the ways our business runs so smoothly.