I had an accident and

I had an accident and my car totaled. Since I was told it is totaled I have recieved a letter from my insurance company saying they are in the process of completing the evaluation for my car. In the letter they sent me DMV forms. The bill of sale, power of attorney, Pay authorization form for my finance company. They want me to only sign my name on required areas on the forms and leave the rest blank for them to fill out. But they have not offered a settlement for my car yet, and I feel really uneasy about sending those forms first. The adjuster also told me last time I talked to her I need to get those back to her asap. And nothing can go foward until she gets those forms. Does this sound right? Shouldn't I get some kind of offer first?