There's tons of events out there, but a good one to start with is FIRE Summit, which is hosted by Think Multifamily. 

Tenant Cloud - What payments do you accept?

@Adriel Liwag and I also host a networking event each month but it's not a club like the two I mentioned above. 

Since AirBnb split booking and cleaning payments, I spend hours per week tracking cleanings and making payments, sometimes in person at WalMart transfers!  I'm looking at a way to hire and pay cleaners automatically, ...

Erik Right now it's a Cloud On Title. 

Of course, you may want to live in an exciting neighborhood with exciting neighbors who drive pricey cars and host wine samplings and brag about public elementary schools that will rocket their brats straight into Harvard in a capsule made of melted-down silver spoons.

As Napoleon Hill puts it, “The coordination of knowledge and effort of two or more people, who work toward a definite purpose in the spirit of harmony.”If you have a hard time finding an in person mastermind group near you, I host a virtual one (ideal for my fellow introverts).

It might be difficult to find these in Boston so you might have to look out of state, which brings another host of challenges. 

Also, if you are in the area I am hosting a monthly Harrisonburg Real Estate Investors meetup so that could be a great place to make some connections with other investors, contractors, etc.

Try not to let the urban legends, stereotypes, and hasty generalizations cloud your decision-making.