Ear plugs, noise blocking machines, noise cancelling curtains could be purchased by the tenant.Rugs will help.  

@Chris Schoonhoven, Columbus Ohio is a great RE market.Speaking of Hilltop, you need to find the sweet spot, I own duplex there and is one of my favorite, not really in Westgate, but that particular block is nice with home owners who take care of their properties, purchasing price is low, tenants there are low-income working class, I did serious tenants screening, and am very happy with the ones I have, it produce the most profit out of all my investments.

Then on the other end of the spectrum I'd say are the little "corner stores" you find on blocks in the inner city with a little retail space on the ground floor and a couple units upstairs. 

One thing I didn't see mentioned is making sure the number/dialer you're calling from is being marked as spam/spam likely or outright blocked by the carriers.

Into the the 30s you started to see CMU (Block walls) emerge as the most common foundation material.

Seems they would just block each other in therefore causing more of an issue.

How long has block chain been around? 

During a septic inspection you would dig up a section of the drain field and see what is blocking it.

**Please note I am not an attorney or CPA, but have been around the block and have set up these structures only to turn around close them because they made no sense.

PS - I am selling this property myself, so I feel that it is some small advantage that I can meet buyers on site and if they bring it up, then I will have a chance to explain it away...kinda....we'll see.PSS - There are only 3-4 neighbors that are seriously affected, so chance of getting a bunch of people a block away to get involved is slim.