If you do not the risks of your 'back of a napkin" partnership agreement will likely not hold up in court.

I use a paper napkin at lunch.

However, the previous owner's lease could be fit onto a napkin, and includes very little of the legal protections important to us in a lease. 

Once you start allocating rent revenue for the (eventual) cap-ex expenses you're upside down in the property.Anyway, that's my what my back-of-the-napkin math would yield.

Again, I don't know nearly enough about the property but that's my quick back-of-the-napkin math.

Otherwise, you have "streets", sanitary and storm sewers, consumer utilities - gas, power, water - and street lighting if/as required by the local authority (municipal, county, etc.), and all the stuff I haven't thought of.If you're looking for dollar amounts, I'm sure that varies from one place to another so much that most guesses will be just that: guesses.

This is an overly simplistic back-of-the-napkin guess and might not be anywhere near reality.  

MAINTENANCE USE AND REPORTING: Tenant shall properly use, operate and safeguard Premises, including if applicable, any landscaping, furniture, furnishings and appliances, and all mechanical, electrical, gas and plumbing fixtures, carbon monoxide devices and smoke alarms, deck, and keep them and the Premises clean, sanitary and well ventilated....Tenant shall immediately notify Landlord, in writing, of any problem, malfunction or damage with any item including carbon monoxide devices and smoke alarms on the property.

As a firefighter/ paramedic I would advise using gloves and exercising caution especially picking up napkins clothes or any other item that could hide an open needle and easily be punctured.

Can it easily be explained on a napkin.