Can surviving children be forced to sell deceased Mother's home to satisfy credit card debt?

Short answer: Yes

Long answer: Yes - Maybe, if there are additional assets which would satisfy the credit card debt, then those assets could be liquidated to make the necessary payment. If there is insurances that would cover the debt, but the creditor is asking for immediate payment, I would ask for a mediation resolution to allow for the necessary time for the payout of the insurance. It could be negotiated to have the insurance company directly pay the creditors and stop the creditors from harrassing the family.