Personally I think it can be done online.

There's likely options out there for your refinance when you rehab it (minimum around 50-75k loan amounts).You can find private lenders online or you could possibly meet one at a meetup.

When you say online advertising, I assume you mean off-platform? 

Not sure where to post this, so if needs to be reposted somewhere else, please let me knowI am trying to determine the value of a property as a STRUsing the online services, it comes out to an income of $110k+ at 67% occupancyOf course that must be net, so what does Abnb etc charge, whats the expected net?

With the inclusion of personal usage for the travel, that may very well push you over the threshold into disallowance.I'll also say that I personally think that having a conference in Cancun versus a much more remote destination such as Birmingham, Alabama or even fully online may also provide some additional ambiguity.

Is it possible to find something like that online (Costar, Crexi, broker websites, etc.)?

Goes to emphasize, not to believe what you read online-go to the state website and see if changes are coming...I doubt it.

You can also check their reviews online at Google, Facebook, or Yelp.

How much new inventory is coming online?

It is fairly easy to do online.