Existing Government Lease as colatteral for commercial mortgage?

[Dan Krause]

:D Can a commercial office building, for sale, be acquired by financing the property at appraised value AND using a federal government tenants lease (5-10 years ) as collatteral or down payment on the mortgage for the buyers acquisition without using buyers own capital? Appraised value of building: $5,000,000.00 Yearly Income: $5,000,000.00 est. What kind of lender would you suggest for this?