Try doing a Google search and look for him/her on social media.
Also there are city/county directories that might help. Do a Google searach for Palm Beach County directory 2015-2018. Sometimes you can find them online for free.
Sometimes genealogical societies and public libraries have them. I'd contact the following:
Genealogical Society of Palm Beach, http://gensocofpbc.org/cpage.php?pt=29
Historical Society of Palm Beach County, https://hspbc.pastperfectonline.com/
Palm Beach Library, www.pbclibrary.org/research-and-homework/genealogy