There are limited options there.  

I would require renters insurance and make it easy for them to purchase providing online options and suggestions to add to their car insurance, etc.

I have an option to purchase a plot of land in Los Angeles at an attractive price but I do not have the funds to exercise it.

If you ever want to connect or be a part of our meetup (free online and remote options) on RE investing, let me know!

Eviction should be the ABSOLUTE LAST OPTION.

Investors are limited in repercussion options, as there are few attorneys willing to specialize in the nuances of international contracts.

The rent by room was managed by a company which I no more trust and started exploring other options 

These options could get you much higher returns with none of the headache.

These types of tenants often do this because they don't want to save in advance, so they take the rent owed to you and use it to put down on their next home.Recommend you do a better job of communicating to the tenants that you will pursue every legal collection option if they don't pay last month's rent.Also, why are tenants NOT staying with you?

You need to identify your starting point to determine your options.