Thanks Kendra....No matter what your lease provides, under California law, there is always an implied warranty of habitability with respect to your unit. A rental unit may be considered uninhabitable (unlivable) if it contains a lead hazard that
endangers the occupants or the public, or is
a substandard building because, for example,
a structural hazard, inadequate sanitation, or
a nuisance endangers the health, life, safety,
property, or welfare of the occupants or the
public. These safeguards are contained in California Civil Code Section 1941.1 paragraph 1 and California Health and Safety Code Sections 17920.3, 17920.10.
Your persistent problem with insects makes your rental unit uninhabitable and therefore you have the right to terminate your lease. Give them your written notice that you are terminating your lease due to the landlord's breach of its implied warranty of habitability and demand a return of your security deposit. If they refuse to return your security deposit, file a claim in small claims court.

I hope this has given you the guidance you were seeking. I wish you the best of luck!

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The information given here is not legal advice. As all states have different intricacies in their laws, the information given is general only. This communication does not establish an attorney-client relationship with you. I hope this answer has been helpful to you.

Yes, you may leave without finding a replacement. You are terminating as a result of the landlord's breach and you are under no obligation to find a replacement tenant.   
I hope this has given you the guidance you were seeking. I wish you the best of luck!

If I have adequately answered your question, even though the answer might not have been the one for which you hoped, I would appreciate it if you would please click the GREEN ACCEPT button NOW, so that I receive credit for my work; otherwise, though you have made a deposit, I do not receive credit.

If you need additional clarification on this question after clicking ACCEPT, please do not hesitate to click Reply and I will be happy to do what I can to help you further. Thanks for allowing me to be of service to you.

The information given here is not legal advice. As all states have different intricacies in their laws, the information given is general only. This communication does not establish an attorney-client relationship with you. I hope this answer has been helpful to you.

You have a couple of options...the best would be for them to give you a written rele due to their breach. If they refuse, you could file suit to get a delaratory judgment, but I would not recommend you go to that expense.   Rather, I would make it clear to them that you are leaving due to their breach and that you have no further obligations under the lease and if they do not return your security deposit in full or if they take any action to pursue rent, you will file a lawsuit against them for damages.   

One thing you should know...even if you had not been entitled to terminate without finding a replacement...which you are so don't worry about it!...but the landlord always has a duty to mitigate which means they have the obligation to use their best efforts to re-let your unit and once they do you are relieved from further obligations no matter what.

I hope this has given you the guidance you were seeking. I wish you the best of luck!

If I have adequately answered your question, even though the answer might not have been the one for which you hoped, I would appreciate it if you would please click the GREEN ACCEPT button NOW, so that I receive credit for my work; otherwise, though you have made a deposit, I do not receive credit.

If you need additional clarification on this question after clicking ACCEPT, please do not hesitate to click Reply and I will be happy to do what I can to help you further. Thanks for allowing me to be of service to you.

The information given here is not legal advice. As all states have different intricacies in their laws, the information given is general only. This communication does not establish an attorney-client relationship with you. I hope this answer has been helpful to you.