What happens next in this paragraph?

How to sublet an apartment in new york city 
Ensure your lease or condo agreement allows it. 
Some renters or condo associations will not allow subletting so be sure to research this before initiating the process. Some will allow it but only with notification, sometimes with a period of notice like 30 days in advance of move-in.
Some will charge additional fees or have their own process for approving subletters. Read your lease, condo agreement, or directly ask your renter/condo association.