My recommendation would be to get approved as a Landlord, contact the director's office and request that an inspection be completed before a tenant is selected (sometimes they will do this as long as you select a tenant within 14 days - which you want anyways), and have an online application and screening resource in place.  

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.

I couldn't find much information about them online besides their own blog posts and a few interviews with the founders, who were promoting MHP business and themselves. 

They claim to market on dozens of online channels, and they seem to know the right amenities to feature, have great design, services, experiences etc.

You can also check their reviews online at Google, Facebook, or Yelp.

I still get junk leads but that is to be expected on just about every online lead platform.

If you've got to ask a question on an online forum about managing an out of state or out of country renovation, you aren't ready to do this on your own.

You can also check their reviews online at Google, Facebook, or Yelp.

If you don't get access to the property before closing it can be tricky but if there are recent photos online or you can walk through before and take your own then it is much easier.

I have integrated a couple of other platforms and had to do the exact same steps when it came to being able to receive payments online.