i received a firm offer from a healthcare GLC, however at the same time i also got a verbal offer from a stat board and am going through the hr neogitations and ref checks.

Is it ok for me to accept the GLC's offer first, and then reject them later when the stat board's firm offer comes? The stat board just started ref checks today and i don't expect them to complte it so fast. I need to give an answer to the GLC by next week.

Should i buy more time from the GLC, accept their offer and then reject them while i wait for the stat board's firm offer?

Tks.