Double Net Lease

[Jose Quinones]

I own a mixed use property (4 residential units, 1 Commercial unit) and need to update the lease of the Commercial tenant. When I first bought the building I did not know the difference of NNN or gross leases so I just copied and pasted the previous owners lease. Now I want to update or amend the lease to a DOUBLE NET LEASE to reduce my expenses.

How do I do that? Write a new lease? Add an amendment??

Does any one have an example of a DOUBLE NET LEASE I can look at? 

Thanks