How to get names and addresses of condo complex across the street from STR?

[Jon Martin]

I am very close to listing, maybe 1-2 weeks out. Directly across the street from my place is a massive condo complex, which is an old textile mill that's been renovated into high end condos. Most of the residents look like millennials and young professionals, and they've seen my place transition from something quite unsightly into a very nice place. I'd like to create a mailer/flyer with the URL for the direct booking website and a "good neighbor" discount because I imagine that many of them have friends/family who would like to visit and be super close but would appreciate not having to share the same space. 

I went into the leasing office and it was no dice. They won't place mailers for me, which is no surprise. Is there a way for me to get the names and unit numbers of the residents? 

Thank you all in advance for any feedback. 

[John Underwood]

County "Real Property " site. You can look up everyone or just send letter out to a zip code or even to occupant at every address in the condo.