What Documents Are Needed For DBA Verification?

[Kalimba]

I know that the best answer for this question is for me to log in to the Dev Center and read the docs, but every answer I've seen is worded so vaguely, so I'm looking for anyone has recent experience with this.

Specifically, what document(s) does Apple need in order to verify a "DBA" (sole proprietership) company account? Also, does anyone know approximately how long the verification process is lately?

[arielm]

Apple will ask for the DBA authorization letter which should have some type of official seal (depending on your state/region). The best way to know would be to call Apple, they answer surprisingly fast...
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