I inherited a tenant whose lease is up in the middle of the month.

I am in a rental now and have to renew my lease October 1 or go month to month, so I'm on a bit of a time crunch.  

These are typically built with some type of government subsidy or incentive such as tax credits for the developer in exchange for the leasing restrictions.

They charge 10% gross collected rent , and take 50% first months rent when they sign a lease. 

That said, if you are looking to sell the business that has value, then I would hire a business broker for that portion, sell the business and write a new lease for the property that could be used for an investor looking for NOI.

Perhaps see if your landlord would be willing to do a lease-option with you (assuming he'll sell at a reasonable price).If the owner is an investor, ask him to lunch and talk to him/her about how they got to where they are. 

If they are looking to "park" money in US, you can buy NNN lease - nothing for you to manage and they will even get a small return (5-7% roughly) but don't quote me on that number. 

I sell, buy & lease for myself and others as a investor/broker.  

Might I mention, I am not on a lease at this point either. 

Read the lease does it say deposit Or fee.