Also do the enemy method (dot com) to suss out your competition. 

This is the simplest method, but it also means your tenants are more likely to abuse the utilities by leaving windows open with the heat or A/C running, leaving lights on, ignoring the toilet that constantly flushes on its own, etc.3.

@James Soto I think it's a great idea, I love the BRRRR method if the numbers don't work as a BRRRR you could still flip it to bring in some capital! 

However, the stacking method of buying one at a time and scaling is probably much more risk adverse method. 

Scale Strategically (if this applies to your goals) Reinvest profits, use the BRRRR method (Buy, Rehab, Rent, Refinance, Repeat), and leverage 1031 exchanges to grow your portfolio tax-efficiently.I'm a mortgage lender at Aslan Mortgage Lending and would love to find time to talk and discuss your journey.

Have you looked into the Turn Key Method?

I’m mostly interested in multi family homes (using the Brrr method).

These methods involve securing financing, identifying suitable properties, and overseeing renovations.

What methods would you suggest to screen potential tenants? 

Method of choice was looking for potential properties online using redfin then when I had run simple numbers I would drive by each property and its neighborhood and if it was worth pursuing, I would schedule to see the property through the selling agent.