Hello if you want to do arbitrage then you'd probably be better joining arbitrage groups @Kiran186
This is a community to discuss Airbnb related issues .
In general if you want to arbitrage you would need to do your own market research to understand how to reach landlords willing to allow you to sublet for STR (in my country standard tenancy lease do not allow you to sublet for commercial use) .
And yes of course you will have to sign a lease or contract .