I own a multi-family property near Downtown Monroe, Mi and have been observing a significant increase in activity in the area. Rental rates are holding strong, which is promising for investors. If there are any invest...

The downside of not replacing it is air conditioning systems fail when it's hot out, when they are needed the most and when it's most unpleasant for the renter to go without air conditioning. 

Most of my units are 1 / 1 apartments of similar configuration which has made it a lot easier to slot in new tenants with minimal gaps in the schedule.  

Quote from @Andrew Low: Anyone with two brain cells knows that the sales market is hot.

It happens - I live in a super hot market, that collapsed a little over a decade ago, and it's been a tough climb back to where values should be. 

So welcome to the "New-Norm"; NEO-Stagflation: Throttled HIGHER price, throttle higher inflation always on cusp of breaking out to run red-hot and verge of cooling but never going either, lower volume, tight labor.... 

But due to the above factors- we're still in a hot and heavy seller's market, with no real relief in sight for buyers (add to that, with the new Burnett / National of Realtors settlement, they will be squeezed even further, having to also potentially shell out their Buyer's agent fees, which, traditionally, have been added into the seller's listing price before listing to provide to the Buyer's agent).

That's a pain but can be done, though you'll have complaints in Spring and Fall about it being too cold or too hot.

Airtags are devices developed by apple to track things like keys or bags, I use this to airtag items most susceptible to theft like hot water tanks or furnaces and provide this data to the police to track the perpetrators.2.

The doors windows appliances flooring ventilation hot water trim along with electrical wiring What was the outcome?