what state is this, please ?
restraining orders are reserved mainly for domestic violence victims. so you would need to show that she has physically abused you or a member of your family. i dont think the fact that she is an addict and has stolen from you is going to do the trick - but
you can go to the court in your county and file for the RO - in your affidavit you will need to state that you are concerned for your wellbeing and the safety of your family - though you will need to cite specifics as to any attack or threats that she has made.
you will, unfortunately, need to file for eviction as the police stated - you cannot change the locks, etc until you do that - otherwise, she can take you to court and sue you - so the question you need to ask is does she have the knowledge and ability to do that if you take steps to bar her from your home without taking the proper steps.
to begin eviction proceedings you need to go to the court clerk and explain that you need the form to file for an eviction based on nuisance of this girl. here is a link for the CT courts that may be helpful to your to further understand the process and your rights.
i know this is a nightmare for you and i wish there were an easier way - unfortunately, no good deed goes unpunished. when you speak to the clerk, keep in mind, they cannot give you legal advice, but they can give you the forms and instructions. also, ask about having an eviction process put on the docket for an emergency hearing. that may be a possibility, too.
DISCLAIMER: Answers from Experts on JustAnswer are not substitutes for the advice of an attorney. JustAnswer is a public forum and questions and responses are not private or confidential or protected by the attorney-client privilege. The Expert above is not your attorney, and the response above is not legal advice. You should not read this response to propose specific action or address specific circumstances, but only to give you a sense of general principles of law that might affect the situation you describe. Application of these general principles to particular circumstances must be done by a lawyer who has spoken with you in confidence, learned all relevant information, and explored various options. Before acting on these general principles, you should hire a lawyer licensed to practice law in the jurisdiction to which your question pertains.
The responses above are from individual Experts, not JustAnswer. The site and services are provided “as is”. To view the verified credential of an Expert, click on the “Verified” symbol in the Expert’s profile. This site is not for emergency questions which should be directed immediately by telephone or in-person to qualified professionals. Please carefully read the Terms of Service (last updated February 8, 2012).