We recommend you get management contracts from several PMCs and compare the services they cover and, more importantly, what they each DO NOT cover.

I'm considering purchasing a condo or a small SFH in the Oceanside/Carlsbad area as an investment property and renting it out on a short term rental site like AirBNB. 

Quote from @Zach Howard: Quote from @Jonathan Greene: If you are looking at properties in the US only on Zillow, and not seeing them in person (I know you are in Hong Kong), this is just an effort in futility because you can't underwrite single-family or small multifamily deals only online.

So, let's hope I get a recommendation.

I have not, but as a licensed broker I would recommend listing on MLS which will post it to Zillow, Realtor.com etc. 

On-line Auction Foreclosure Website.

What tenant screening sites has everyone had luck with?

Quote from @Patricia Smith: Hi BP Crew,Would love to get some recommendations on property management companies in Cincinnati, Ohio.

Keep in mind that this comes with high turnover, and (often) students who will beat the hell out of the property!

When you say you want to prioritize cash flow over equity, you want to watch out for people honing in on that and selling you "good cash flow" deals which will be in D neighborhoods and will come with high capital expenditures and harder tenancies.