An SOR (Statement of Reasons) is list of items that the government wishes to use to deny your continued clearance. Make no mistake, the lawyer who prepared it believes that you should not continue to hold your clearance. This may be ridiculous on its face, but you need to treat it seriously.
You will have something like 20 days to respond after you receive the package. As was proven in my case, you never know what could end up on an SOR. They may have decided that they think you should have reported the other charge, it may be the three charges despite the fact that they are ten year old misdemeanors. If that’s the case, you will have to go through the guidelines to determine the applicable mitigating factors and write everything up. Be prepared to provide documentation for any claim that you make.
But, Marko is right . . . There is little that you can do until you get the package. This site provides you access to many experienced people who can help you prepare your response.
By the way, you will be given the option of having a hearing or having a decision made on “the written record”. My recommendation, if you decide on a hearing, is to hire an attorney. The government will be represented by one and I don’t recommend going up against an attorney pro se. The written record is different. You will get a chance to see the governments case and then to respond. They do not get to counter.
The SOR is just the first step if you decide to skip the hearing. You will respond to the SOR and the government will produce a FORM (File Of Relevant Information) and you respond to this. It is the ALL of the documentation that the judge will examine to determine the outcome of your case. If you win, the government MAY decide to appeal and drag the case out for a few more months.