Marks is a handbag designer from Palm Beach who was born in South Africa but has not lived there for 40 years.
Marks is Trump's pick as the top U.S. diplomat to the second-largest African economy.
Despite having a membership cap of only 500, Trump has tapped four Mar-a-Lago members - including Marks - for a diplomatic post.
Marks started her handbag line in Palm Beach in 1987, and has since provided handbags for celebrities from Princess Diana to Sarah Jessica Parker, according to The Palm Beach Daily News. Her sought-after bags can cost as much as $400,000.
President Donald Trump has nominated handbag designer Lana Marks to be the next United States ambassador to South Africa.
Marks' site also notes that she was appointed to the Women's Leadership Board at Harvard University's Kennedy School of government, which supports the Women and Public Policy Program.
Marks is the founder and chief executive of Lana Marks Inc., a luxury fashion-accessories company. She has been accused of underpaying attorneys, accountants, landlords and employees, the outlet stated, and is involved in a legal battle with her siblings over the care of their elderly mother.
Marks, a Florida resident and member of Trump's exclusive Mar-a-Lago resort, according to a source familiar with the club, was born and raised in South Africa, where she attended the University of the Witwatersrand and the Institute of Personnel Management in Johannesburg, the White House said in a statement.
Marks has not yet publicly commented on the announcement, though she did comment on the rumors about her potential ambassadorship last month, saying, "I can't comment on that right now". "Brian Burns, who is also a Trump mega-donor, was offered an ambassadorship to Ireland but also turned it down".