who do i contact in okla to be able to cash my last 3 payroll checks

i have 3 payroll checks and 4th due on may 10th i have asssssked my boss says dont have it- i am a senior worked 15 yrs for this family that recently changed within family. i cant afford an atty, have no family to help and all my bills are due for may my littls ss will pay house payment?? i need help and told if i quit i cant draw unemployment, do i go tallk to uempoyment agency, is there someone there that have commisson try to get my money. i have worked desk and then became lounge manager at locsal hotel i know changed name about year ago and business has really been goig down i taled to former boss that moved to kentucky and his son that ran about 5 mo and signed checks, i am getting the run around