Buying property tips?

If the property is infested with a Home Owners Association, walk away. The one this place is infested with has a hard time understanding that what goes on inside this house is none of their business. I've already met 3 board members up close and personal after they tried to unlock my door and come in. Don't understand, or care to, why they feel the need to have a key to the place, but it's in the HOA agreement I didn't sign and I'm being hassled for noncompliance. They are also bent out of shape over the riding mower behind the barn that you can only see from the air if you are not trespassing...