What Does This Mean In My Lease?

[USA - IN]

I'm a student and may need to move out of my apartment early because I'd be out of town when the lease actually ends. The management company is kind of "questionable" shall we say, but I didn't know for sure that I'd be moving here until last April and that late in the game, options were limited.

My lease ends in mid July, but I may need to move all my stuff out in May/June. I totally expect to pay the full rent through the end of the lease - not trying to get out of that. There's just a clause in my lease that makes it sound like I may not be allowed to turn in the keys early or could be charged extra for doing so in addition to paying the usual rent. Or maybe it's saying I owe them extra money if I don't renew even on their timeline? I'm a little confused and wanted to ask what you all think...clause in question pasted below.

NO EARLY SURRENDER. Lessee(s) expressly agrees that Lessee(s) shall not surrender the Property or vacate prior to the expiration of this lease without first having obtained Lessor’s written consent. Termination of occupancy does not constitute termination of this lease agreement until the expiration date of the lease. This paragraph shall not affect the paragraph above regarding subletting. Accepting unit keys and/or completing a Move Out Inspection at the request of the Lessee(s) does not terminate the lease prior to the expiration date in the absence of written consent by Lessor. Lessee(s) shall be responsible for all payments due and owing under this lease until a new tenant takes possession of the leased Property through eviction or through the Intent to Vacate process. A non-refundable administrative fee of one half (½) of one month’s rent shall be paid in full at the time an Intent to Vacate request is made. The Lessee(s) shall make reasonable attempts to find replacement tenants.