Texas Association of Realtors' Sample Lease has the following:
B. If Tenant fails to timely pay all amounts due under this lease or otherwise fails to comply with this lease, Tenant will be in default and:
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(2) all unpaid rents which are payable during the remainder of this lease or any renewal period will be accelerated without notice or demand;
However, the standard Texas Apartment Association (TAA) apartment lease contract is explicitly unforgiving and unconditional, to the point of being quite unreasonable and unconscionable about the application of acceleration, something I've hardly seen on any other lease anywhere:
11. UNLAWFUL EARLY MOVE-OUT; RELETTING CHARGE. You’ll be liable for a reletting charge of $____________ (not to exceed 85% of the highest monthly rent during the Lease Contract term) if you: (1) fail to move in, or fail to give written move-out notice as required in paragraphs 23 or 37; or (2) move out without paying rent in full for the entire Lease Contract term or renewal period; or
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14. FAILING TO PAY FIRST MONTH’S RENT . If you don’t pay the first month’s rent when or before the Lease Contract begins, all future rent will be automatically accelerated without notice and immediately due.
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32. DEFAULT BY RESIDENT. You’ll be in default if: (1) you don’t pay rent or other amounts that you owe on time; (2) you or any guest or occupant violates this Lease Contract, apartment rules, or fire, safety, health, or criminal laws, regardless of whether or where arrest or conviction occurs; (3) you abandon the apartment; ...
Acceleration. All monthly rent for the rest of the Lease Contract term or renewal period will be accelerated automatically without notice or demand (before or after acceleration) and will be immediately due and delinquent if, without our written consent: (1) you move out, remove property in preparing to move out, or give oral or written notice (by you or any occupant) of intent to move out before the Lease Contract term or renewal period ends; and (2) you’ve not paid all rent for the entire Lease Contract term or renewal period. Such conduct is considered a default for which we need not give you notice. Remaining rent also will be accelerated if you’re judicially evicted or move out when we demand because you’ve defaulted. Acceleration is subject to our mitigation obligations below.
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38. MOVE-OUT PROCEDURES. The move-out date can’t be changed unless we and you both agree in writing. You won’t move out before the Lease Contract term or renewal period ends unless all rent for the entire Lease Contract term or renewal period is paid in full. Early move-out may result in reletting charges and acceleration of future rent under paragraphs 11 and 32.
Is this at all legal?
For example, if someone signs a 15 month lease, but has to move after a couple of months, are they really supposed to shell out 13 × the monthly rent prior to being able to assign the lease to someone else, and/or until some such someone else is actually found and takes over the lease?
If the provision is not actually enforceable in Texas, for example, due to damage mitigation provision, or due to the late fee statutes, why is it so prevalent in all residential leases in Texas, especially by all TAA members?