Want to close our joint acct. and open up a personal acct. Husband will direct deposit funds from work into my acct. is this ok

I see no problem with this. This is something you should do after separation.

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"Legally," this arrangement is likely fine.

HOWEVER, most banks won't allow this. In order for you to receive a payroll direct deposit from your ex, he'll have to be on the account (due to bank policy). I've worked at a couple of banks and this, to my knowledge, was the policy.

Call your bank.