If there are substantial discrepancies that will disqualify the tenant, I usually let the tenant know that their background check revealed issues.

Sounds like your hard work and expert planning revealed a great deal for you. 

Anything you post can be revealed in a simple Google search too.

I most recently talked to an academic adviser at the University, and he relayed that a recent survey they sent out to future students revealed that they are expecting around a 45% drop for on campus students this year.

Research revealed that the homeowner hasn't paid property taxes since 2012.

If they don't take the time to tailor their pitch and services to you specifically then it reveals how much effort they will put into working the listing and you should move on to interview a different broker.

It was definitely a consideration but diving deeper into it revealed some pretty big cons to doing it.

I have a good property inspector to use once I am under contract to reveal any potential significant issues. 

However, the inspection revealed that the foundation had undermining and there were 2 vertical cracks in the foundation that need sealing.

So just the ability to carry more debt for less down.Calculating the IRR comparatively could indeed reveal whether a zero coupon is actually a better deal.