We have a townhouse attached with others and our lawn is attached to others lawns. The problem is that our neighbors are constantly coming into our back lawn and a lot of times right outside our window facing the lawn where our lounge is. This is a first time home for us so is this normal ? What should I tell the neighbor and how ? We don't feel a sense of privacy if the guy and his wife and kids are constantly in our area of the lawn all the time they are out at the back .