A document checklist generator for every document the registry will ask for, in the order you need it, with who issues it, whether it must be notarised or apostilled, and what falls due after incorporation.
Rejections seldom hinge on the company itself. They arise from a document that is the wrong age, in the wrong language or lacks a stamp nobody had brought up.
Know what the filing pack costs, what the tax bill looks like, and how this jurisdiction compares before you send anything.