I recommend lining someone up before you leave for a 1 year term.  

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.

Make sure to verify any information from a party that doesn't have any advantage of you getting their services before making a decision.  

Dealing with warranty service is a pain in any situation but when you also have to deal with a tenant on top its even worse.

@Stephen Totter, thanks for jumping on and conveying your experience!

Read your mortgage paperwork for the due on sale clause. 

I've read J Scott's Books on flipping and gone through the Youtube rabbit hole but I feel like I'm missing a piece.

Give them all the details, contact information, time lines, relationships, etc.  

Congratulations on closing the deal.  

Most can do it for the cost of the initial service call, if not it usually would be a slightly more charge.