Can you please help me with another lease question (details inside)?

My lease is up July 31 and I am trying to figure out when to actually move out (which will also be the day I fly out of the country for a yearlong stay abroad).

I read this on my “Intent to Vacate” form: “The full term of the lease shall have expired and if not, I agree to be responsible for all applicable fees for terminating said lease including repayment of any concession(s) or special(s) given during the term of said lease.”

Is this legal-ese declaring that if I don’t move out on the very last day of the lease, that they will charge me lease termination fees and ask for rebates back? This is a very corporate and inflexible management company and I am sure they are out to make as much money as possible.

Would it be a mistake for me to try to clear out of here a few days before the lease expires on July 31st?

Thank you very much for any advice.