Rhino:
Talking about getting wrong information from a consulate reminds me that some of the worst misinformation I got from consular officials was about the requirements for documents. I have US documents in my chain, too, and the rules for those are easier than the rules for most other countries. (For example, US documents don't need to be apostilled or "legalized.") There are also easier rules for some other major nations, not just the US. It depends on what country issued the documents.
Make sure the information you get about your documents is specific to the country of origin, especially for US documents, not the general document requirements. I wasted a ton of time and money apostilling things that didn't need to be apostilled because the consulate gave me wrong information. But if you have documents from outside the US, they may need to be apostilled and "legalized."
In my case, I also had to have certified translations done for every document that wasn't in Hungarian before I submitted them to the consulate. In some countries the consulate will translate them, in other countries you have to have it done privately through a translator they refer you to. And in all cases I had to submit original "certified" documents from the issuing authority. Xeroxes aren't good enough (unless they're for Hungarian church records before 1895). The consulate/embassy has to see official documents. (But if it's the only copy you have, some consulates will accept a Xerox if you show them the original at the same time so they can compare them. I did that and they submitted my xeroxes and gave me my originals back.)
Just fyi. Wrong information about documents cost me a lot of wasted time and money. I'd hate for that to happen to you, too.