Our phone applications are taken and entered directly into the application system. The Call Center staff are instructed to speak directly with all parties who wish to apply (course there's no way to make sure of who they're talking to.....so this method is just a good faith effort) and then document each applicant's response to the question with a notation of "verified by phone."
I do think that at closing, the joint applicants are asked to go ahead and initial the printed application. We've not been criticized for doing that.
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The more you sweat in training, the less you bleed in battle.......