Hi @Alfredo46,
Welcome to the Community Center! That's great that you are looking to start out as a host! I suggest that before you get started you have a look around the Community Center, as there are lots of good resources to help you. This list of Community Help Guides created by other hosts is particularly useful and gives useful information about various aspects of hosting.
In terms of protecting yourself, many hosts recommend adding a security deposit to your listing. It is also important to have clear and comprehensive house rules.
I have moved your post here to a new thread so that it doesn't get lot in another conversation and it is easier to find. I have also given it a title, please let me know if you want to change it!
Good luck and let us know how you get on!
Kirstie