Basically, when spouses are the only members of the LLC, in a community property state you have the option to treat the LLC as a disregarded entity instead of as a partnership. But I don't know how that applies when the LLC was established in a community property state, and you lived in a community property state when you established it, but you no longer live in a community property state. The tax professional that you go to will figure it out for you, but they will probably have to do some research because tax professionals in Georgia don't normally have to deal with community property.
I don't know the answer to your question about the address, but if the IRS needs to contact you they will send a notice to the address on the tax return, so it has to be an address where you will have timely access to any mail that is sent there. There is probably a procedure to notify the IRS that the business address of the LLC has changed. Again, the tax professional will be able to advise you about this.
Your situation is beyond the do-it-yourself level. You need to go to a tax professional.
