Professional Team

Horizon is comprised of experienced and diverse individuals with over 100 years of combined real estate experience, making Horizon a very successful and competitive company. The staff includes Licensed Mortgage Brokers and Licensed Real Estate Brokers with CCIM affiliations. The Horizon Team is made up of the following people:



N.J. Olivieri
Founder & President

N.J. Olivieri, is the Founder and President of Horizon Mortgage Corporation. A Commercial Broker for over 40 years, N.J. opened Horizon Real Estate and Investment Corporation in 1975, and Horizon Mortgage Corporation in 1979, now a merged company. N.J. has created a company in which he has the ability to combine the real estate marketplace with the mortgage marketplace. N.J. has closed on approximately $8,000,000,000 in commercial transactions nationwide and has also been involved with several commercial developments.


Ken Ackerson

Ken Ackerson began working for Horizon in 1989 at which time he opened Horizon's Clearwater branch office. He is the real estate broker and branch manager for that office and has personally sold over $150,000,000 in properties and has arranged loan commitments as high as $200,000,000.


Michael Stockton

Michael Stockton has been a Commercial Broker for 6 years who has sold and financed a variety of commercial properties including hotels, retail centers, land, golf courses, Assisted Living Facilities and apartments. Since 2004, Michael has coordinated over $173,000,000 of closed commercial transactions for the company.


John W. Herbert, Jr., Esq.

John Herbert has over 30 years of legal, commercial real estate and corporate banking experience. He has originated, underwritten and structured over $1 Billion of commercial and residential real estate projects during his career.


John Tooke

John Tooke has been a Commercial Broker for over 25 years and joined Horizon in 2007. He received his B.S. in Real Estate from California Baptist College.


Kelly Gilliland

In early 2000, Kelly Gilliland was hired as Vice President working primarily in permanent financing, construction financing, equity placements as well as commercial real estate sales with experience in all commercial property types. She has over 15 years experience in the industry and has been a Licensed Commercial Real Estate Broker for over 12 years. She graduated with a Bachelor’s Degree in Economics from Florida State University.


Stephanie Olivieri

Stephanie Olivieri is a Commercial Loan Officer who joined Horizon in 2006 after graduating with her Bachelor’s degree from the University of Florida. Stephanie has been involved in the underwriting of every property type and has successfully handled $93,000,000 in closings including the financing and/or sales of Medical Office Buildings, Assisted Living Facilities, Retail Centers, and Self Storage Facilities.


Eric Mortimer

Eric Mortimer is a Commercial Loan Officer who has underwritten and closed various commercial transactions including equity raises, conduit financing, SBA loans, capital leases, and conventional bank financing. Eric specializes in medical financing. He graduated in 2005 with a Masters Degree in Management Information Systems from the University of Memphis.


Christie Stockton

Christie Stockton joined Horizon Mortgage in 2008 and handles all of the accounts payable and accounts receivables as well as Horizon’s insurance needs. She holds a Bachelor’s degree from the University of Central Florida in Health Services Administration.


Jane Main

Jane Main is the voice you will most frequently hear upon calling our offices. Jane joined Horizon in 1996 and enjoys greeting our clients around the country. A long-term resident of Sarasota, she is always happy to be able to help. Jane is the mother of three daughters who reflect their Mother’s love of travel, one living in Sarasota, one in California and one in London, England. Jane says this always gives her somewhere interesting to go and someone she loves to go with her.