I think it is a fair amount of noise for nothing really.

The daily grind of getting that next bid from customers, who have predetermined that every contractor is going to rip them off, is putting a bad taste in my mouth. 

Think about it, most likely a family is NOT going to want to live in a 2/1 and a old farm house converted to updown duplex...nope. downstairs neighbor going to hate a family it they moved in upstairs due to noise kids will make ...Plus old farm house maintenance nightmare going to nickel and dime you to death...and it's a converted duplex pass. 

Its a grind.

Hello BP, for the area to growth there must be some future projects going on and current infrastructure that are hard to duplicate, but it is wise to purchase an apartment near to schools, malls, places of worship & etc because of the traffic, noise pollution and extreme density that may actually increase the tenant turnover as it is uncomfortable to live in such location?

The grind continues..

Keep grinding, and the deals will come (often when you least expect them!)

Also, I would post hours of operation if the machines noise could disturb nearby tenants.In short set the expectation right from the beginning and fairly enforce.

Being close to a sheriffs department to me, as an investor, or a buyer, would mean loud noise, and possibly light, at late hours. 

We call it "quieting the noise".