Hi, imtaya2!
You've already been answered about the licensing, insurance and bonding things. I would just like to add one more thing that might be helpful to you.
A lot of banks will work with major firms that hire people to do that which you're wanting to do. There could be a whole team that works on a property.
In order to get in on some of the possibilities for work in foreclosed homes in a specific vicinity, it also might be of benefit to see about working for one of those types of firms. You may need to work for a firm such as that to even be able to work in a property on which foreclosure has happened.
One such outfit would be the following that you might want to contact. Field Asset Services -
The Premier Property Preservation, REO Maintenance And Repair Service Firm In The US
I wish for you only the best!
Thanks!