Carmen Mantay



O: +1 904 404 4450   |   M: +1 904 553 5238

Carmen Mantay, Vice President International Director

Carmen Mantay joined the NAI Hallmark brokerage team in 2013 after starting her career in Commercial Real Estate with Coldwell Banker Commercial Benchmark in 2006. Mrs. Mantay’s primary focus is to help local, national and International Buyers, Investors and Sellers of Commercial Properties. She focuses on the acquisition and disposition of commercial medical office buildings, investment properties and land. She has developed a strong local and international network of clients and investors that continues to grow and develop over the past 15 years. Her experience and expertise in the commercial real estate industry allow her to be a strong and strategic negotiator successfully closing complex deals. She is very focused on customer service and her attention to detail helps her offer the best quality in her marketing material and presentations.

Mrs. Mantay was born in Chile and moved to Jacksonville in 1991. She is fluent in Spanish providing training and consulting on best commercial real estate practices to clients from Latin America and USA. She volunteers giving lectures in purchasing and leasing commercial real estate to JU orthodontist graduate school students for the past 3 years. Mrs. Mantay is also a mentor at the UNF Cogging College of Business mentor program.

She is passionate about helping others and in her spare time she enjoys traveling with her husband Frank and daughters Francesca and Isabella, photography, gardening and painting.


Ongoing Mentor UNF College of Business students
2020 Guest Speaker to Building Construction Management Students at University of North Florida
2019 Candidate for Certified Commercial Investment Member (CCIM)
2014 – Present Guest Lecturer to Jacksonville University Orthodontic School Graduates
2013 – Present NAI Global Women’s Alliance Leadership Committee Member
2013 – 2017 City of Jacksonville Board Member for the Hispanic American Advisory Board to the Mayor


Mentor at the Coggin College of Business at the University of North Florida
Lecturer at Jacksonville University
City of Jacksonville Economic Empowerment Board Member


University of North Florida | Jacksonville, FL
Engineering and Computer Science
Bachelor of Science, Building Construction Management


Highlighted Work

Penman Plaza

Duval Road and Cole Road

40 Acre Land, $2M Sale

Belfort Office Park

J. Turner Butler Boulevard and Interstate-95

7.5 Acre Land, $2.7M Sale

Baymeadows Business Center

7807 Baymeadows Road East, Suite 402

$1.4M Investment Sale Office

“Carmen worked with our commercial land listing over an extended period of time, she was professional and enthusiastic throughout. The land was sold to Bentley car dealership and I look forward to working with Carmen on future projects.”

Mani Perumal, Chief Engineer Lead, Leidos

“Carmen went above and beyond to get our deal closed in Neptune Beach. There are very few agents that would be so diligent and committed to getting a deal finalized when there were so many hurdles and obstacles. Highly recommend anyone looking for an agent that will go the extra mile to use, Carmen Mantay.”

Ruth Borne, Attorney

“Carmen was very professional and ethical from day one in our goal to sell our medical building. She is experienced, knowledgeable and an excellent negotiator. This was a long and challenging process to close the deal but she worked hard in making an excellent sale work for me getting the highest possible value in the end. The buyer and I both benefited from this transaction. Carmen was great to work with and I would work with her again anytime. I would highly recommend her for any commercial acquisition or disposition transaction to other professionals, family, and friends.”

Jason Thompson, Urogynecologist, Florida Urogynecology