In the commercial space, different rules may apply.Other than this, you'd have to discuss the logistics with your broker.

Quote from @Fadil Khan: Interested in learning about investing in property for rental income, commercial property vs rental properties (section 8, traditional etc)1.

Even if offering owner financing it's still tough for someone to risk $1M on a property that appraises for a small fraction of that.With multiple units, maybe you could look at a commercial sale? 

You should not have allowed access and now you are going to live the old adage of "it's easier to give slack later than to real it in." 

If there were other issues though, be aware that they could choose to enforce this minimum at any timeMore recently, the city has created a rental database with contact information of all active rentals in the city that law enforcement and city officials have access to.

Properties also have specific risks depending on if they are industrial spaces, commercial buildings or multi-family units.

Also where can I access your extension?

An attorney would be able to advise on risk mitigation via insurance vs an entity + commercial loan.

The RE agent stated some properties on the river in the past did not get their lease extended to provide better river access.  

However, in the event of an emergency, the Landlord and/or his agent has unrestricted access to the property.