Hello,I'm looking for a management company in Sri Lanka that can take care of my property in one of the touristic areas.

Where I’m at, which has solid jobs but isn’t a luxury condo in a tourist hotspot, I make more with less hassles charging like $600-800/mo per room with a security deposit on a lease, plus split utilities (so they have an incentive to not run the AC/heat like crazy - my other smaller house with included utilities is going on 4 months of $550/mo electric bills while the first with shares utilities is $250).

Best areas are typically tourist intensive areas where STR'S are fully embraced. 

I am in a tourist and military area which always makes for a good investment.

If you self-manage, you will need to find great cleaners, and I would be my own inspector until I trust their inspectors.I am in a very transient / tourist-driven market here in Pinellas / Tampa Bay and my partner has been in hotel management for decades, so we can tell you all about how guests think and what they expect. 

Tourist hot spot.

BTW, I found this YouTube video on tourist traps and such in NOLA (since this will be my first visit).

I would be worried about a Dominican Republic type tourist crash.

This town is not a tourist destination by any means. 

Especially if you are buying out of state, I'd suggest that the properties are in proximity to the major tourist drivers in that cities.