When it comes to renting an apartment or home, the number one rule is... GET IT IN WRITING!!! So many times I've heard tenants say they have told their landlord over and over to fix something. But until it's in writing, the landlord can just say, "I have no idea what you're talking about. This is the first I've heard of this!".
One of my favorite resources for getting information about Oklahoma's Landlord/Tenant Act, is the "Metropolitan Fair Housing Council". They are a free resource to anyone renting and will answer any questions you may have.
***Their number is: 405-232-FAIR***
If you want to read up on the Landlord/Tenant Act, here's a link:http://www.tenant.net/Other_Areas/Oklahoma/tenant.html
The Oklahoma Bar Association has a list of FAQ's:http://www.okbar.org/public/brochures/tenbroc.htm