Dear Andrea,
I have a little more time now.
Unless you have a 1951.4 notice in your lease, the LL has to try to mitigate any losses. Apartments are in short supply right now, and they should have no difficulty in re-renting. However, this is Holiday season, business is slower, and maybe the University is also out-of-session, if students are a popular source of tenants in that complex.
No, they cannot charge you a "fee" for breaking the lease. Nonrefundable fees are not allowed in California. You ARE responsible for the remainder of the rent, until the end of your lease, but if the apartment is re-rented to someone else then the LL doesn't lose anything, and the rent from the next tenant is credited to your obligation.
I expect that you will have some charges, however, in addition to responsibility for rental loss. If you don't leave the apartment clean, or you damage something, you should be prepared to pay for that. Additionally, the LL is entitled to charge for the service of mitigating the loss. That means time, advertising, painting, etc.
Often, some complexes, especially outside of LA give 6-month leases which then turn into month-to-month rentals after 6-months. They feel that 6-months is the minimum time that they need to have the place rented in order to cover their basic move-in costs, such as wear&tear on stairs, carpets, painting, etc due to the move-in. If they painted for you, then they shouldn't have to paint again for a new tenant during the term of your lease. Painting one of my apartments costs me $350. If you want to do a calculation, check how much rent you are saving in your new apartment for 3 more months, and compare that to what you may have to pay just for moving out before the end of your lease. On the other hand, if there is a boyfriend involved, well, love always wins out over good sense, especially among the young.
If your apartments are really so popular, there should be no problems to have it re-rented.
I suggest you:
Give as much notice as possible (in writing, of course).
After a couple of days, call the office yourself and ask if there are any vacancies coming up. Ask for an apartment like yours and a date a few days after the date you gave for vacation in your notice. If they say NO VACANCY, go to the office, ask for the manager, tell what you did and the response, and ask why they didn't offer your apartment.
It was a very good idea to put up your notice on campus.
Do that again, if you get calls, show the apartment yourself and if you get a bite, escort your customer to the office and tell the manager that you would like this person to be considered for the apartment you are vacating. Follow it up.
You could also sublease, if your lease allows (or actually, if it doesn't forbid it), but having the LL re-rent the unit is better for you.
I don't really think you will have any difficulty with the office re-renting your unit. They know what the obligations are on their side, and if they have been in business very long, I am sure that they are doing it.
Check your lease for a liquidated damages clause. Maybe they just charge a round number for all of their expenses in having a tenant leave before 6 months. Sometimes this is the amount of the security deposit, and they may not need agreement to do that.
And learn to make your paragraphs and sentences shorter, if you want to look like a university graduate.
Good Luck,
younglsm