Is there heavy furniture against the wall, which could inhibit air circulation against a cold wall?

It's shorthand for Nebraska Furniture Mart!

Assuming I supply brick.

Mix of 2 and 1 bedrooms with rents ranging from $525-595 currently.Extras:On site laundry - currently has a company supplying the washer/dryer units and giving 20% of the earnings (while the site is paying 100% of the water/disposal).  

The caveat to that is we no longer have the abundant supply of small and medium sized investor distribution access.  

What I learned after having every single power tool stolen from a flip property - the day after a very young team of males installed new HVAC supply lines in the subject property.

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.

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.