If you have a significant estate than includes more than one property, you should hire an attorney who specializes in real estate law. They can provide sound advice about taxes, mortgages, and the like, and can prepare your estate for transfer once you pass away.
Real estate law is in place to protect you, the buyer, as much as it is to make sure the government gets its share of taxes. If you've been sold a bill of goods or have gotten something that's not what you signed for, then you're entitled to hire a real estate lawyer and seek legal satisfaction.