Avada Has RTL Capability Built-In

Avada is the most flexible theme around because its fully translatable and comes in several different languages, is 100% WPML compatible and also has RTL built right into the theme. RTL text will display properly when an RTL language is specified in the wp-config file and uploaded to the languages folder. Or you can also use one of the language plugins like RTL Tester. When using RTL tester plugin, you will see “Switch to RTL” button in the top WordPress admin bar. Simply click that button to switch to RTL, the Avada theme does the rest.