i was told that the state of missouir makes me responsible for my husband''s unpaid doctor bills and personal property taxes

You can be held liable for the necessary and reasonable medical expenses of a deceased spouse. The creditor may be willing to settle with you or dismiss charges based on your financial situation. A good lawyer can help you minimize your liabilities. Property taxes for property titled in the name of your deceased spouse would typically be paid by the probate estate, if one was opened. You should seek further guidance based on all of the facts.