We have put up with the noise but will be moving soon and anticipate a new tenant will not and complain to us about it.

There is a lot of white noise out there, but the list above will intro you to the few groups and gurus that are worth your time.

From a copywriting perspective, I feel like that's going to cut through the noise a lot better than the usual "we want to buy your house" on a yellow letter.With the copy I use, I get zero calls from pissed off people and I'm in the drivers seat from the get go.  

is the noise from the upstairs neighbors - the walls/ceilings are thin here and it doesn't help that a prior owner for the upstairs unit installed hardwood flooring (and without very good padding) throughout.

Is there a risk of noise violations?

A tenant can only be evicted if a pet is making too much noise, damaging the unit, causing an allergic reaction to others, or is considered to be inherently dangerous. 

We think it will be more professional to give advance notice and want to prevent as much noise complaints, etc. as possible.

Noiseaway will help monitor noise level in your unit (think smoke detector but for noise).

Vinyl is usually relatively low maintenance, the only inconvenience could sometimes be noise when the material expands and contacts, or if the building is in a high wind area. 

Always keep grinding. 3) Network- There are numerous people out there, who you can connect with and create a relationship with, that can help you throughout your journey.