I've joined facebook groups and looking around online for a mentor in the city or near the city I plan to invest in, I've connected with someone and plan to speak to them monday but nothing is promised but I'll look into them again.

The use of online classes has been increasing every year and are projected to continue to increase.

Is the information about “In MA, tenants generally have 30 days to pay repair costs...” available somewhere online? 

check the local municipal code, most are online.

You can find different strategies on how to find and reach these folks, such as driving for dollars, targeting mailing lists, networking with Realtors and other wholesalers, and having an online presence, plus paid social media ads, etc.

It seems you are falling for the alarmist rhetoric you’ve been reading and watching online.

Check out the free content online of Bill Faeth. 

I’ve got that Arizona license #AZ-21837, and I lean on a pretty wide network of top-tier realtors and boots-on-the-ground pros who can give you insights you might not find by just browsing listings online.

-I'm fairly careful with communication , but again, I know doing business online is way riskier, but I want to ask: Typically, I would trust someone who seems very in-depth, informative (gives statistics and numbers), and basically would give me thorough steps (including worst-case scenarios and what would best fit my situation)^^would people who have experience say that even with the above, some agents/lenders/PMs would still be sort of out to get your money and do a lousy job?

A tough thing we've found though (like you mentioned) is even the highly rated foundation folks in our area -- as well as a lot of the content online -- all have a strong incentive to sell big high-margin solutions.