Hello all, am new here so please help me if i go wrong somewhere. We live on a property which has retaining wall made of boulders as the boundary which is ok, but the second retaining wall which is supporting the boundary retaining wall is in the neighbour's property which is made of timber (21 years). This one has started to deteriorate. If this breaks loose means the boulders will roll too maybe and cause injury or damage to the neighbours and dont know what else as the land is sloping down hill. My legal question is: should the neighbours get this repaired before it gets too late? What happens if there is damage to my property due to all this, who is responsible then? It is very difficult to communicate with this neighbour. Please help.