It also does not prevent a landlord from prohibiting the smoking of marijuana on the premises consistent with existing smoke-free statutes and ordinances throughout Illinois.

Phillip:Thankfully, the garburator/garbage disposal is predominately a US affection.Dollars and cents aside, there are many other reasons not to use them:1) they increase the amount of organics that reach the sewage treatment plant which, in turn, increases the plants consumption of oxygen ... which, often results in more active bacterial matter being flushed/released from the system into waterways;2) increase the amount of solid residue which needs to be removed from the treatment plant and disposed (usually in landfills);3) they have been linked with the increase in toxicity of the water supply (this is not a fault of the machine itself, but rather the user); 4) they also tend to increase per-household water consumption.Under sink garbage disposals are no longer permitted in many locations.As a landlord with student rentals, they are simply an invitation for more service calls and higher repair costs.

we have an LLC in Washington State (which doesn't have any income tax--until the nuts in Seattle try once again to make people who work hard "pay their fair share" so the lazy people can smoke weed in Pike Place at lunch time during the week..seriously happened once again today!!!)

If you have or can get one of the little laser thermometers they have at Lowe's, etc, test the temp right at the return (the great big vent where the air is sucked into the unit) and a nearby supply register (the little ones that blow the air).

Investors in listed REITs buy and sell securities on a public exchange, the price of which is often influenced by supply and demand as well as other non-real estate market forces.

On the supply side, copper is most probable, but galvanized and, even, lead are possibilities.It is also very probable the duplex does not meet modern fire codes.  

I think you could approach the owner (who sounds tired of owning and managing) and see if he'll supply the down payment/contract for deed.

You should be able to find packs of these in the drywall supply area of your hardware store for a couple of bucks.

When I first discussed what we were doing with them, they were intrigued, but did not have an existing "box" into which to classify all these sensors - like they have for smoke and CO detectors, sewer back-flow valves, etc.   

It's the old law of supply and demand--too little supply and too much demand.If you're looking for "deals" with sweat equity, they are few and far between.