Once legally free how long does it take?

Here in Michigan, the standard (so we are told) time frame for adoption is a year from start to finish (with a few exceptions.) We find ourselves in this situation: The children were placed Nov/03. TPR was done 0ct/05. Our foster caseworker said she will hand over the file to the adoption caseworker in Dec/05 (and although she has no say who it will be, she will try to pull some strings to get a 'fast' one, as the children have waited long enough.) She said to expect first contact with the adoption caseworker in January/06 (after the holidays). We will have to go through another homestudy, bio reports, background checks, and health studies. Because the children have already lived with us almost two years, we will not have to wait the six month waiting period. If everything goes right, we should be able to adopt anywhere from Sept/06 to Nov/06. We are hoping for November, as that would mark 3 years since we got them, our wedding anniversary is in November, and National Adoption month is November! Not to mention Thanksgiving - as we have a lot to be thankful for - but that is a no-brainer!