What is the likelihood you will be sued to collect a 500 dollar debt from a credit card?
At a minimum, it depends on the following:
What the laws of your state allows through the courts: (liens against property, wage garnishment, etc)
If the laws of your state allow such outcomes, it will be up to the creditor to decide if pursuing you in court will adequately serve their purposes.
If you have no assets or job (i.e. you're 95 years old and are in a protected income status (social security recipient) the creditor may go for a default judgment against you. A default judgment will stay on your credit report for 10 years. (but if you're 95, that is the least of your concerns)
Can you keep a credit card if you dont list it on your bankruptcy and want to keep it but file bankruptcy on all other debt?
Your husband is getting a garnishment on a credit card you just found out that your bank account has been frozen not from his garnishment but from a credit card that I have owed on. Is this legal?
You will default on your credit card accounts. Being an unsecured loan, there is little a credit card company can do. That is a risk credit card companies take. Regardless of why you can't pay, non-payment will result in default. The extent to which a credit card company will attempt to collect depends on whether or not they feel you have sufficient income.