I am from Tunisia, I'm planning on my studying abroad next year. Every country I am interested in requires a certain amount of money when applying for visa or your parents' financial statement (if they work) from last several months. My dad is a cab driver and he doesn't have or use a bank account, my mom has few houses that she rents out.
How can I prove to the embassy that my parents don't have income that gets stated in a bank, but one of those houses' rent would be sent to me abroad every month to support me?