I have been a loan signing agent since 2004. My E&O insurace is cover $100,000.
You email loan document to me, I print it and have your client(s) sign it. Then I overnight it back to you with your prepaid overnight fee. That would save your time for printing document and send it to me.
Also, I can speak fluently in Vietnamese, so I will explain the loan document in Vietnamese to your Vietnamese clients.
I hope I have a chance to work with your clients.