If you will not petition for her Residency, she will not be able to stay. If she has no permission to stay, of course she could be deported at any time. There is only way way she can self-petition and that would be if she can prove that her U.S. Citizen or U.S. Lawful Permanent Resident spouse abused her. Other than that, there is no amnesty.
She can also apply for Asylum (she had to have done this within the 1st year be being in the U.S. unless there are changed country conditions), Withholding of Removal, Convention Against Torture, or Cancellation of Removal. The first three things are if she fears to return to her home country because she believes that she will be specifically targeted due to her race, religion, nationality, social group or political opinion and that she runs a high risk of great bodily injury, torture, or death as a result. The last, Cancellation, she would have to prove that she has at least 10 years in the U.S. AND she must also prove that if she is deported, a U.S. Citizen or Lawful Permanent Resident that depends upon her will suffer exceptional and extremely unusual hardship. This hardship must be something more than emotional separation hardship or financial hardship, so it is difficult to get.
I am truly sorry for the bad news, but the options are very limited at the moment.
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).