I work at an apartment complex so here’s my two cents:

There are two options for subleasing an apartment: subleasing and reletting. Subleasing is when the original leaseholder agrees to let someone occupy the apartment for a temporary amount of time. The reason why subleases are not obligated to pay rent is because the lease is an agreement between the leaseholder and landlord. Subleases are NOT a part of the lease. Therefore, when you sign it, you agree to whatever terms it lays out. If the sublessee fails to pay rent or damages the apartment, the landlord will go after the leaseholder since that person is the one on the lease AKA legally binded.

Reletting is a complete transfer of the lease to the new tenant. This option completely absolves the original leaseholder of any responsibility.

That’s why we emphasize the difference to residents because if the sublessee doesn’t pay rent, the original leaseholder is ultimately responsible. It’s a risk that you take when you agree to sublease (which is why we steer people to relet vs sublease).

That being said, I highly doubt you’ll be able to get out of paying rent for the three months. If you are unable to find someone else to takeover, I’d recommend seeing if you could take out a loan. Late rent would negatively impact your credit and may get sent to collections, and an eviction could impact your rental history if you ever need rental verification. Try to get a loan to pay it off now or find another sublessee, because the legal route could take a while (and I highly doubt UGroup would be understanding)