Could we pay for support to migrate from another control panel?

Migration of existing customers is a very risky and responsive operation that should be well-planned and done without any rush. As a rule after preliminary estimation of these services their cost appears to be unexcessible for the customer, so they refuse it. The safest "migration" way is to leave existing customers on the current control panel solution (if it's possible) and create new customers in DotNetPanel. Then you can move existing customers one-by-one without any rush using "Import Resources" wizard integrated into DotNetPanel.