Are there any online platforms or institutions you recommend for studying real estate principles, market analysis, and property management?

You can find them here on BP or online like meet up.com and places like that. 

I am just curious for those that have a Schlage Encode lock, have you seen it start going online and offline, especially during very cold weather.The weather at the lakehouse had been in the -15 to -25 range for about a week or so and the lock would go on and offline every hour to 3 hours.

@Dillon Ransome many if not most areas have property records online so you dont have to actually go there. 

Don't underestimate the power of online forums and social media groups.

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.

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.)?

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