这不是两家都有自己草坪，一家帮另一家剪草然后take over.

另一家是farm land是关键。It's very obvious the lawn belong to the house to everyone if not looking at the servey. This indicates exclusive usage.

And the fact is the lawn was exclusively used by people living in the house.

打官司肯定能赢，应为有最高法院的案例可循。