It provides practical tips, strategies, and case studies to help you succeed as a real estate investor."

When you use a Realtor (especially one who invests themselves, don't fall for I'm an investor 'friendly' agent..of course they are, most will take a sale wherever it comes from and by shear numbers, they are bound to sell to an investor eventually.

All those people that have houses from 15 years ago that we're all saying "well of course you're making tons of money in STR, you have a mortgage from 2010!". 

I am real estate investor with a focus on building a portfolio of SFH and Multi-family apartments primarily along the East course  .

I have been reading a little bit on data mining by going to places like NETR online but not exactly sure if that is the right way or how to start. 

Of course, slap and list plays, where it's a few cosmetics updates and re-listing properties mostly as-is was the strategy for some, and in those cases they are priced out of the market now for reasons he stated.

The lake is right there for summer and of course skiing.I don't know about the rules around STRs in the area but it seems like a solid choice.

Of course! 

I understand the costs associated being an Agent (I actually took a course and passed the licensing exam a few years ago, but never did anything with it as I started a new career as a Firefighter). 

I know I'm tipping the sacred cow here, but cashflow is checkers, appreciation is chess.