My thoughts are:1) File Lis Pendens.2) File Lis Pendens and move to go to mediation/arbitration.3) Call seller's agent's broker.

I assume you tried to arbitrate the appraisal after it was completed?

You'll be asked to go into a room with an arbitrator before the judge hears it, too. 

The two times we did not stick to our guns we had to redo the job since walls were crooked and not straight and went to arbitration with the "best" contractor in town. 

In any action brought by the tenant to recover the deposit, the prevailing party shall additionally be entitled to the cost of suit or arbitration including a reasonable attorney's fee."

See the items below (sorry copy and paste seems to have colored text in a weird way I can't fix):https://leginfo.legislature.ca.gov/faces/codes_dis...Noted at: 17708.03."...activities of a foreign limited liability company that do not constitute transacting intrastate business in this state include all of the following:(1) Maintaining or defending any action or suit or any administrative or arbitration proceeding, or effecting the settlement of those, or the settlement of claims or disputes.(2) Carrying on any activity concerning its internal affairs, including holding meetings of its members or managers.(3) Maintaining accounts in financial institutions.(4) Maintaining offices or agencies for the transfer, exchange, and registration of the limited liability company’s own securities or maintaining trustees or depositories with respect to those securities.(5) Selling through independent contractors.(6) Soliciting or procuring orders, whether by mail or electronic means or through employees or agents or otherwise, if the orders require acceptance outside this state before they become contracts.(7) Creating or acquiring indebtedness, evidences of indebtedness, mortgages, liens, or security interests in real or personal property.(8) Securing or collecting debts or enforcing mortgages or other security interests in property securing the debts and holding, protecting, or maintaining property so acquired.(9) Conducting an isolated transaction that is completed within 180 days and is not in the course of a number of repeated transactions of a like nature.(10) Transacting business in interstate commerce.It also states in the section following the above excluded items:(c) Without excluding other activities that may not be considered to be transacting intrastate business in this state within the meaning of this article, a foreign limited liability company shall not be considered to be transacting intrastate business in this state merely because its subsidiary transacts intrastate business in this state, or merely because of its status as any one or more of the following:(1) A shareholder of a domestic corporation.(2) A shareholder of a foreign corporation transacting intrastate business.(3) A limited partner of a foreign limited partnership transacting intrastate business.(4) A limited partner of a domestic limited partnership.(5) A member or manager of a foreign limited liability company transacting intrastate business.(6) A member or manager of a domestic limited liability company.

We emphasize care of the place, reporting any kind of leaks or water entry, and indicate arbitration in leui of litigation in case of disagreement. 

Also, the state of formation is likely where internal disputes would be brought among LLC members, so if you and a partner and/or spouse live in CA, you probably want to arbitrate in CA if the two of you had a disagreement.

Any landlord so deprived of possession of premises in violation of this section may recover possession of the property and damages sustained by him or her, and the prevailing party may recover his or her costs of suit or arbitration and reasonable attorney's fees."

THIS MEDIATION PROVISION APPLIES WHETHER OR NOT THE ARBITRATION PROVISION IS INITIALED.B.