Finally! I just returned from the Post Office where I mailed our I-600A application to immigration. Now, we wait 8-12 weeks for approval. Between now and being approved, immigration with contact us with a date and time we need to get our fingerprints taken. I guess this usually happens between weeks 4 and 6. You don't have any say about when it is and there is no option of rescheduling. On top of that, it's in Detroit. I guess we'll just have to make a day out of it. Maybe we can even make an Ikea pit-stop :)
We received our home study this weekend, but I wasn't able to mail it to immigration since we were visiting friends in Tennessee. More on that trip next.