A sample letter offering a job contingent upon the results of a background check or other criteria. No. You either accept it, or you don't.If it isnt' acceptable, you need to have a conversation with them about what can be changed. A conditional offer of employment is a job offer that is based on you meeting certain requirements before starting the job or continuing the job. Is there anything I need to know, from a legal standpoint, if I were to back out of the signed job offer now? I am in California for reference. There is no involuntary servitude in California. You may back out of your contract and no one can enforce your performance. Even if the written contract had been signed, the employer has the right to change the terms and conditions of employment. I received a job offer from a company in California, but they rescinded it after they found out that I'm in probation (misdemeanor) from their background check.