Number 8 should be cast in the subjunctive because there is some doubt how long (or if) the documents will be verified.
It's OK to say estaba for #1. It's also OK to use estuve, but that wasn't a choice. I wanted to point out that either is correct. Which tense you'll use depends on whether the speaker is still worried. For #2, we're not talking about a characteristic of the daughter (in which case era would be used). However, we could be talking about a condition that had an end (estuvo), or one that hasn't ended yet (estaba). The choice is yours, but you may have to defend your answer.
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