As would canned goods, fuel, batteries and other necessities.One problem with gold as a currency is the indivisiblity.

i try to cover everything because, like you said, they see me as great landlord. just last week i rented a gas log spliter, split lots of wood and build a firewood rack for one of my houses. this way they can have some wood for the firepit in the back yard.they never asked, but since i cut 2 trees earlier this year, i was tired of seeing the wood just rot away on the ground.I have a line in my lease that specifies that filters, bulbs & batteries are all new @ the time the place is rented & future replacements will be @ tenant expense.

For this reason, if a tenant calls due to a malfunction of the smoke detectors and a technician is dispatched, you can have the following outcomes:Technician determines the smoke detectors were faulty, and replaces - owner chargeTechnician determined the smoke detectors batteries needed replacing - tenant chargeIf written into the lease that the tenant is responsible for such replacement and the detector was easily reachable, - if not or if the tenant is elderly or disabled, assume reasonable accommodation: owner charge=time/labor & tenant charge=battery costWhere the property manager must be mindful is in the allocation of the owner's resources (money).

I highly recommend that with your net worth, which is continuing to grow with these properties (while also expanding your liability - Carbon Monoxide kills one person because your C02 detector didn't have battery back up or had died, and you lose everything).  

In the last grow house I dealt with, they had a giant bank of batteries that they trickle charged in order to spread out the usage impact.

Make sure your calculator is working, have batteries.  

Neighborhood A:Crime reports indicate in 2008 there have been 6-7 burglary in the neighborhood, 1 arson, 6-7 assault and battery (domestic).No sexual assault, no armed robbery or car theft.

Hey guys who is responsible for checking the batteries and making sure the detectors are working properly after the tenant has moved in?

Guys with the cost of materials stay away from cages under $300.00 these guys have battery powered band saws, sawsall, and they only need time.

That said, I would let the tenant stay a few extra weeks and charge rent for it because I don't consider renovation an urgent reason to kick someone out.