Trying to change permissions via Terminal:
$~ sudo chmod -r 777 [DIRECTORY LOCATION HERE]
Before it can start diving into the subfolders, it comes back with:
chmod: 777: No such file or directory.
Looking at the files, the folder is now "Write-Only (Dropbox)" across the board.
Attempting to adjust batch permissions via Get Info panel does not recursively apply even when directed to do so.