She doesn't make a lot of noise?

A lot of it is just noise looking to grab readers' attention.2) A lot of the same things that are tried and proven continue to be extremely valuable in these times. 

Use a low-noise fan (I use panasonic FV-0511VQ1 from Amazon) and wire it directly to the overhead light so it comes on with the light switch - tenants won't even know its running. if you put it between the wall and the light you can punch through the outside wall from the cutout you make for the fan and also reach the electric in the light. 

Renters in my category are looking for safe homes close to work & school and away from noise, a big house for their money, a layout that makes sense, and basic & durable amenities so they don't have to walk on eggshells and can get their deposit back when they move. 

And a lot of them were having troubles cutting through the white noise..

I was a success because i ignored all the noise and BS, and stuck to the facts, data and made my own analysis from those. 

For example if there is  noise or on street parking that is prohibited they should complain to the police.

If they don't get along with their neighbors (or neighbors confront them about noise or disorderly conduct), they will text you with a frivolous accusation about the tenant in question.

So when shopping understand this is how you shop for insurance and then try to get an apples to apple comparison or at the very least make your agent work to explain any "liabilities or what is not covered" on the policy if they can't rattle it off easily then they are not fimular with the product they are selling and really should not be selling it. 

It's tough practicing in my current condo due to worrying about noise bothering the neighbors...