As the owner of the property, you are liable for the death of the trespasser.The letter from the lawyer was correct about referring the matter to your homeowner's insurance company.  If the case is settled with the homeowner's insurance company, NO lawsuit will be filed.  If the case is NOT settled with your homeowner's insurance carrier and a lawsuit is filed, your homeowner's insurance carrier will provide you with an attorney at no cost to you.  That attorney will handle the case for you.  The answer to your question is yes, you will need an attorney, but again the attorney will be provided to you by your homeowner's insurance at no cost to you.