Can I file OR in 2 states?

Hello, everyone,

I am working at CA but the company's headquarter is in TX. Now I hope to file OR 140 and 485 concurrently. The lawyer wants to file in TX but it seems that 485 in CA is much faster than in TX. My question is: Can I file OR 140 and 485 in these 2 states at the same time? or Can I file 140 in TX and 485 in CA?

thanks in advance.

AMABC