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John Douglas

John is the Owner and Broker In Charge for Charleston Harbor Yacht Sales. John has over 25 years experience in the boating industry and has architected Charleston Harbor Yacht Sales with the best tools and hired the best talent the industry has to offer. Having managed new, pre-owned and brokerage sales in North Carolina, South Carolina, Georgia and Florida, he has the experience to make the buying or selling of your boat/yacht a pleasurable experience. He has had extensive factory training fr om many manufacturers including Azimut, Sea Ray, Bertram, Cabo, Hatteras, Regal, Grady White, Mainship and Meridian, to name a few. When not working, John spends time with his wife Noriene and daughter Erin.

In our Charleston, SC office:
John Douglas (843) 425-6888

Mallory Schoolfield

Mallory grew up on the Chesapeake Bay where his father taught him the love of sailing and boating. He graduated from the College of Charleston in 2002 where he earned a Bachelor’s Degree in Economics. While in college, Mallory became a Certified US Sailing Instructor and is currently certified through Coastal Passage Making. After graduation Mallory continued his love for the water and has served as a Sailing Instructor, Charter Captain, Delivery Captain, and Director of Yacht Management, where he has gained extensive Vessel Management experience. Meanwhile Mallory has been able to log over 20,000 sea miles in waters including the British Virgin Islands, the Bahamas, the US Virgin Islands and the rest of the Caribbean and holds a US Coast Guard 50 Ton Masters Captain License. In his spare time, he has raced everything from the smallest Laser Sailer to 40ft and even larger racing yachts in Newport, Annapolis, Key West, and Charleston.

In our Charleston, SC office:
Mallory Schoolfield (843) 818-9854

Mark Covingto


Captain Mark Covington served in the U.S. Navy from 1965 to 1969 at which time he received his honorable discharge. While in the Navy, Mark traveled to over 22 countries and four oceans aboard a destroyer. He was recalled into U.S. Naval Reserve Program in 1987 where he served as captain traveling the East Coast Intracoastal from Charleston, SC to Key West until 1999 when he was honorably discharged again. Mark has been a Harbor Master in Savannah, GA, has taught a U.S. Coast Guard Marine Safety Course for many years and has his 100 ton U.S. Coast Guard Masters License. He has sold and delivered over 200 boats in his storied career. In his spare time, Mark fishes in tournaments and enjoys training people in boat seamanship, docking, navigation, safety regulations and fishing techniques.

In our Savannah, GA office:
Mark Covington (912) 663-3503

Randy Warren

Randy grew up fishing, boating, and working on the waters of the Chesapeake Bay. After studying GIS at James Madison University, he settled down in Charleston, SC where he’s spent the last 11 years. Randy also currently works as a contractor for NOAA and brings his project management skills to the table to ease the boat buying and selling process for clients. He holds a USCG Captain’s license and has spent time doing deliveries, racing sailboats, and cruising the Virgin Islands. In his spare time you can find Randy fishing and cruising the Charleston waters in his 18′ Edgewater with his wife Leigh and boykin spaniel Barley.

In our Charleston, SC Office:
Randy Warren (843) 810-1156


Nick Negovanovic

Nick was introduced to boating at very young age. Growing up in the boating environment helped create the passion of the water that continues with him today. He has extensive knowledge of boats both power and sail and is well known for taking care of his clients before, during and after the sale. His industry experience and lifelong commitment to boating along with his ability to deliver exceptional personal service will benefit anyone considering purchasing a new or used vessel or listing for an expedient sale.

In our Charleston, SC Office:
Nick Negovanovic (843) 608-4834