I have been told the town of Ocean City's phones are going crazy over this letter.
The letter in this case was written on August 7th then mailed to the condo's management company who in turn mailed it to the owner. So in some cases the owners don't get the letter until August 12th. If they don't submit an application with payment by August 18th they could be fined from $25 to $1000 per day and subject to removing the floating dock.
Also, if they don't get the application in on time they will have to remove the floating dock which may cost about $1000 then submit an application. In many cases these floating docks have been in place for over 10 years.