I signed a check made out to my husband and me with both our names, deposited it in my account and sent him a check for half. Is this legal?
depends on whether the pay to the order line had His Name AND Your Name or His Name OR Your name. If your bank allowed it then that's on them, the only consequences would be if he was to dispute it.
No, I can't believe the bank let you deposit it without his signature. If you forged his, that's illegal. Bad choice