Hello - I recently started helping a company with their accounting for their multiple companies all related to real estate. They use Quickbooks Premier and require 3-4 people to use the software on 3-4 different computers. They are currently storing their Quickbooks working files in DropBox, and from what I've read, there is huge potential for issues with the QB file when storing in DropBox. From my research I think my options are: 1) Upgrade to Quickbooks Enterprise with hosting ($130 per month), 2) Subscribe to an Intuit approved cloud hosting service to store the working QB file (seems about $65 per user per month), 3) setup a server within the office and connect all computers (not sure of cost but I imagine would require IT professional for setup and purchase of server), 4) continue storing working files in DropBox and risk file corruption. I wanted to reach out to see if others have experience with this and how you've handled. Thank you!