After you click to apply, you'll be asked to submit your preferred dates. These can be easily changed before you sign a lease so don't worry if they're not exact.
You'll need to meet the listing requirements before you can submit your application. For example, if the listing requires a minimum 650 credit score, you'll be prompted to complete a credit check before proceeding.
Once you apply, you'll have a private messaging thread with the lister. Your lister's next step will be to review your application and work with you to finalize the lease.