If you hired a specialist who is qualified to assert that there is presence of mold requiring mediation then they should provide you with a letterhead letter stating their findings and recommendation on remediation.

At mediation she agreed to move out by Oct 16th.

San Jose has rent control and a dispute mediation program.

Do you follow any specific "mediation" practices?

Neighbors need to work things out without you mediating.

I co-own a property with ex husband for which I did a LIfe Estate for the former father in law (as part of divorce mediation agreement). 

You cannot get in the middle of disputes or you will spend all your time acting as a mediator. 

It is because the day before Thanksgiving last year I settled a similar case through a mediator.

Force mediation.

If Hubzu or the listing agent tries to pull any shenanigans, the Sacramento Association of Realtors has a mediation department that handles situations like this.