I agree with my colleague above. You need to consult with an experienced immigration attorney specialized in removal (deportation) defense about the particular circumstances of your case.
First of all, you have to be aware that your interests and your husband's interests might conflict here. We also do not know if you have children or if he has any other avenues to remain legally in the US. If the case is that he would like to remove the conditions, if you divorce he would not be able to do so, or at least jointly. However, he could submit the petition (I-751) with a waiver on the joint filing requirement. He or you two should consult with an attorney, but bear in mind that you may want to do so separately to avoid any conflicts.
Pretrial probation is not the worst thing that could have happened to you, but you may need to consult with an attorney who understands the intersection of criminal and immigration law. You need to take into account if there were any other associated charges (likely this is linked to a domestic violence incident), any previous criminal record you may have, and have an attorney take a look at your immigration record. Be aware that if you have a criminal record and decide to travel, you might be risking your green card, you could have problems returning to the US and depending on your case you could be issued a Notice to Appear in front of an Immigration Judge and end up in removal proceedings.
I believe you have asked this question in the past. You can always fight against deportation, but to counterattack an allegation of marriage fraud you would have to prove that the marriage was in good faith. You should contact an immigration attorney who can help you explore the options you may have.
You may update your address with USCIS filling an AR-11 form (http://www.uscis.gov/ar-11) either online or via mail. The steps you need to take depend on whether you have a pending application with USCIS or not (see: http://www.uscis.gov/addresschange). However, USCIS indicates that "You do not need to include temporary addresses as long as you maintain your present address as your permanent residence and continue to receive mail there." It is important that whatever you do, you make sure that you will know that you receive all incoming mail from USCIS because if they do not have your latest information, you may miss notices of action, requests for evidence, decisions etc. If you decide to change your address now, make sure you update it if you move in one year. If you have more questions about your case, it is advisable that you consult with an immigration attorney.
Normally they give you an answer on the spot or within a 2-4 weeks, but if your interview was at the USCIS Boston Field Office, I can tell you that you are not alone. We have been experiencing delays in our cases. An immigration officer told me a couple weeks ago that right now they are swamped with naturalizations, and it is also the visa season, and they are giving less priority to the adjudication of cases like yours. Bottom line: it might be just a delay, but if you have questions or concerns about your cases, you should indeed make an info pass (appointment to speak with an immigration officer - https://infopass.uscis.gov) and inquire about your case. You can also consult with an attorney who could go with you and follow up on your case. Check the info pass website late at night, early in the morning, or in the afternoon. Quite often there are cancellations, and you could get an appointment that same day or the day after.
Take a look at the receipt number in the notice that you received, and check the processing times at the USCIS website:
It will depend also on the Service Center that is processing your application. You or your attorney can always call the USCIS free number (1 (800) 375-5283) or even file an E-request for information, but first check whether your case is still within the average processing time. If it is, there is not much you can do apart from waiting.
Regarding your LPR status you could still keep it if you remove the conditions as another colleague already mentioned. If your marriage was done in good faith, you could also keep your residency as long as you are able to prove it. I would recommend contacting an immigration attorney.
It is more complex than that: you have to prove a good faith marriage. The fact that you lived together on its own will likely not suffice for that. Children, commingled financial resources, real estate that you owned or leased together, photographs and even affidavits are some factors that can indicate a good faith marriage.
An immediate relative can petition for a person already in the U.S. However, depending on how the potential beneficiary entered the country and whether she/he is here "legally", you may need a waiver to address potential inadmissibility issues. I believe you need to provide more details about the case, perhaps discuss this situation with an attorney, and be very careful before sending the potential beneficiary out of the country.