So far I'm happy with my investment as well as the PM (RE referral) who really handles the "landlord-ing".  

Hey @Israel Mendiola, As accountants on BP we cannot self-promote.

Which do you think will be more competitive, buying from wholesalers or your own referrals?

When doing due diligence on the contractors, ask for proof of insurance, licensing, and referrals.

This is one of the main guidelines as it promotes safety and quality of life for ADU residents.

My current portfolio is in the Twins Cities and Duluth, MN however Im open to other locations as long as it comes with a strong property management referral that I can connect with.  

Build a team of people to help; an agent who isn't trying to talk you into every opportunity and knows how to analyze a deal; a lender who offers you all the possibilities; an inspection company that can get things done quickly; finally a property management company that comes with good referrals.

Promote your listing using online platforms, social media, and Airbnb's own tools.

Corey, I have an EA referral if you're in need.

http://www.biggerpockets.com/forums/93/topics/139634-is-illegal-to-pay-referral-fees-to-non-realtors