Internal restraints may prevent a treatment like you would do.

Is there a wash or a treatment of some sort that will eliminate them?

Total cost including rehab (New roof, New AC unit, paint, closet, tub treatment, etc) was $24,000.

@Adam Spencer Better insulation and sound treatment might help, but this is a good leverage you could talk to the bank I assume.

But @William E. rightly recognizes that a unique opportunity has come your way through that walk through couple.Normally a 1031 exchange on this project would be difficult to defend because the timing and process would look awfully like a fix n flip and those do not qualify for 1031 treatment.

Properties acquired with the intent to buy, rehab/flip and then sell do not qualify for 1031 Exchange treatment. 

I will be on cancer treatment for the rest of my life. husband has heart failure.

The tax treatment for your rental properties is the same whether you own the properties in your own name or in your LLC.  

Get some of that "frosted" look window treatment from the local home improvement place - not a heavy pattern, but enough to to allow the light to still come in, but blur or remove the view of that gas station.  

@Rose Martin - when you say "shutters" are you referring to exterior shutters or interior window treatment?