Re: Am I Responsible for Root Damage to Neighbors Slab That Occurred Before I Bought
In CA, generally, one has both the right and the responsibility to maintain the branches and roots of trees which cross over onto their property. Since concrete sidewalk heaving from roots is a long and slow process, progressing over years rather days or weeks, the question of why she didn't take action at some point when it became apparent that the roots were beginning to damage the sidewalk is certain to come up. 6" of heave is likely the result of several decades of the roots acting on the sidewalk. I'd be very surprised if her claim didn't fail on several grounds.
I'm a surveyor, not your surveyor & not an attorney.
Advice is general survey, not legal. Hire a local professional for specific advice.