I finally received the confirmation letter yesterday. It turned out the department pushed back the hiring day for 2 weeks.Can I back out of it if I receive a better offer from another company? The medium has no effect on its legality. Edit, sign, and share california job offer online. No need to install software, just go to DocHub, and sign up instantly and for free. With more than 10 million residents, Los Angeles County is the most populous county in the nation. A student on PostCompletion OPT can work in the U.S. for up to 12 months after completing their degree program. The Fair Chance Act prohibits employers from inquiring about an applicant's criminal history before making a conditional job offer. While an offer letter does not constitute an entire agreement, like an Employment Contract, an accepted job offer is legally binding.