Fit or Not Fit that is the Question?

Here is the latest: We spoke to the Birthmother today and she filled us in on the paternal aunt/sister scenario. She apparently has 3 small children (all under the age of 5), she is 28 yrs old, not married but has a boyfriend, and (during the time of the birthmother knowing her) was not employed.
So, we are not here to pass judgment or try to pin point what exactly makes a fit parent...but if I had to guess, it does not sound like she is in an ideal situation to parent another small baby.
We are hopeful that this will not progress to anything more then an inconvenience, but we do remain cautious, as the courts almost always favor the biological family for placement. However, Paul and I do have an ace up our sleeve, knowing that we have ties to her biological sister, and ties to the birthmother (being that she has picked us to parent her daughter in an open adoption), we hope this will hold some weight in the courts.
All we can do now is sit back and watch this develop. We pray that it will not delay things too much but we are smart enough to know that it certainly will not help matters. We had hoped to have "Sadie" living with us by the second week of November, but now we will be lucky if she is with us by Christmas. It is sad and frustrating, but in the bigger picture a few more months won't kill us if she ends up with us in the end.
I guess I don't need to tell you the Birthmother is just beside herself - worried that she will lose "Sadie" to the Birthfather and/or his family. They do not have an amicable relationship and I am fairly certain there are some types of restraining orders in place. The whole thing is a bit of a nightmare - and if it was not for a beautiful little girl's happiness at stake, Paul and I would be tempted to high tail it out of here. But we are already in love with her (if that is possible) and we have wanted her since the day she came into this world. I guess this is a true test of parenting: When the going gets tough, you can't just turn your back, you have to fight till the very end....and that is just what we intend to do.
"Hell hath no furry like an adoptive mother/father scorned."