Steep early-termination penalty
The tenant shall pay a penalty equal to 50% of the remaining annual rent upon any early termination, regardless of cause.
Half a year's rent is an unusually large exit fee, and "regardless of cause" removes the usual exceptions for job relocation, unsafe conditions, or landlord breach.
Recommendation
Negotiate a fixed 1–2 month fee and add carve-outs for relocation and uninhabitable conditions.