Even if you just had one tiny old lady living upstairs, it can sound like an elephant when you're downstairs, and some people are more sensitive to the sounds of someone walking around above them - I'm one of them, which is why I only rent the top floor unit when I rent.Is there any way you could get them to swap apartments? 

They may be able to get a restraining order so they can't contact you or the tenants.

Here in Boston and generally around hospitals medical residents tend to be great low impact tenants: All their time at work or sleeping, generally not too price sensitive (whats another few hundred when you have 300K+ in loans?)

I use rentprep.com so I opt for the feature that allows the landlord to request the applicant to fill out sensitive details online, and they pay for it directly online.

Is this shady or just someone whose hyper sensitive to his privacy?

., she can call 911 and get a restraining order against him which will mean he needs to move out and can't move back in. 

When it comes to audit-sensitive areas like STR and REPS, I think the best bang for your buck is to pay someone to do it for you who has been doing it for years. 

Scammers may even go as far as creating fake W-2s or other tax documents or advertise fake tax credits to lure in taxpayers to share their sensitive information.Text, Mail and Phone Schemes: Scammers are targeting tax professionals and taxpayers through phone calls, text messages, and even fake AI generated IRS letters.

Do a sensitivity analysis.  

Let's face it, people get overly sensitive about the subject.