simple, ask your bank
No!
Yes. But it wouldn't be done without a reason.
It's probably the IRS or the courts. Nobody else can do it.
yes it can..the banks does not care if it is a joint account or not and they do not care if you are married
Impossible to know unless you have his checking account information.
A US checking Account
Yes. All sorts of fraudulent activities can lead to a checking account being frozen. The bank may temporarily freeze the account if they suspect fraudulent activities in the accounts transactions. And, the bank can permanently freeze the account if there is a legal advice from law enforcement agencies reg. your account
Yes. There are no restrictions as to who can deposit cash into a checking account. Anyone can deposit cash into anyone else's account as long as they know the account number of the account into which they want to deposit cash. For ex: I can walk into the bank branch where you hold a checking account and deposit $500 into it if I know the account number. Nobody will ask or question me as to why I am doing so…
Yes a lot of people tend to overdraw their checking account because they do not know how to balance their checkbook.
Credit card
i do not know sorry
Sounds like Karma to me.....