How long does it take to get a visitor visa?

[ducky06 0]

Does anyone know what the shortest amount of time possible to get a non-expedited visitor visa is from a Central American country like Guatemala? Could it take less than two weeks? Less than a month? More than that? My brother-in-law's coming and we know he ought to apply 3-4 months in advance, just wondering what is typical and what is the fastest possible turnaround. Could his passport and visa be sent the same week as the interview?

Also-- invitation letters--

We gather the invitation letter is not the most critical part of the application (the applicant's demonstrable ties are)... But does the applicant bring it and any other supporting docs (letter from employer, etc) to the interview at the Consulate? There is no way to attach docs to the online DS-160, right?

And,should the inviter attach any sort of Affidavit of Support? Seems excessive for a 10-day visit.

Thanks!

Steph