@Joshua Khoo
Hey Joshua. I'm a US expat working in Singapore who invests in buy and hold rentals in the Southeast US.
I think the first step is going to be identifying your target market(s). Since you're building out from overseas, you can pretty much go anywhere. Personally I'd recommend looking into the Southeast - places like Atlanta, Raleigh-Durham, or Memphis - or the Midwest (I don't know these submarkets as well, but a quick Google search or forum search should lead you in the right direction).
Market analysis is going to include some key indicators like population growth, economic development, crime statistics, and school district quality. Property taxes could be a consideration as well.
Once you have a market identified, you can work on building out a team, but that really is a whole endeavor in its own right. Just take it one step at a time. Market first, define your strategy, then build the team.
I'm happy to meet up to dig into this more if you like, just drop me a PM.