You need to actively talk to people about what you are doing, ask them for referrals to others that might be interested. 

I've had the best luck with FB groups, networking(local or through social media), referrals.

Promote Structure - This is usually if you guys have 1 person who handles the majority of the business and the day-to-day operations.

Derek Schronk Derek are you still with RentRedi if so do you mind sharing the Referral code Referral Link Referral Link Referral Link

I'd ask for referrals, and reach out to some local folks and see what is working and not.Best of luck!

Vendors who partner with Costco pay for market exposure and referrals, which often adds to the final cost passed on to the customer.

Quote from @Alba Cheung: i need some referrer for eviction lawyer in Fulton county. 

It's technically avoidant of advertising or self-promotion, but it always is blatant self-promotion opportunity.

Also:_________________________________________________________________________Recommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

This makes a lot of sense to just do it on the side as a referral and not risk any of your own capital it sounds like.