Every landlord is different. Most landlords will do a background check and do a soft pull on your credit to determine the risk associated with renting to you. However, many landlords take your situation into consideration before making a final decision.
If your credit score is bad you may need someone to co sign with you on your lease.
If you do not have anyone who is willing to do this having a larger security deposit may help.
I do not know about your situation but we have contacts with several property owners would love to help you if we could. Give me a call at 423 595 5006 or send me an email at email@example.com.
You can also visit my website http://www.thatdarnerealtor.com
Give us a call if you think we can help you in any way.