Roman Jones, the hospitality mogul behind Kiki on the River and Habibi Miami, has entered a multimillion-dollar partnership to elevate one of Miami’s most iconic seafood restaurants.

Maria Antonia Cay, also known as Toñita, was born in Puerto Rico in May of 1940. She came to New York when she was 15, and her first job was at a skirt factory. Last June, she celebrated the 50th ...