Is there anything I need to have ready beforehand?
beforehandは「事前に、前もって」といった意味の単語です。 ahead of timeや prior to~も使えます。
「〇〇の申請にあたり、△△以外にやっておくべきことはありますか?」なら
Is there anything else I should have ready other than △△ when applying for 〇〇?
とすることができます。「△△以外に」ですのでelseを入れます。
参考になれば幸いです。
Is there anything I should do in advance?
Is there anything else I need to do beforehand?
Is there anything I should prepare ahead of time?
Is there anything I need to take care of before I apply?
1. 「事前に」=in advance / beforehand / ahead of time / before ~
2. 「やっておく」=do / take care of / prepare / complete
3. 「ありますか?」=Is there anything…? / Do I need to…?