No that is not a cause of action. Sounds like the COA would be Fraud. Also sounds like you are going to do a Quiet Title action to clear title. ...

Can a will probated eight years ago be challenged now?

No. You would have had to challenge it before it was admitted to probate and certainly before the Petition for Final Distribution was granted.

Impossible to say without reviewing the will and trust. It is possible the will does not do anything to affect assets in the trust and you would...

Is a holographic will valid in California without a date if no other wills exist?

See Probate Code Section 6111 for the requirements of a holographic will. If there are other wills it could be invalid.

You could have a Wild Deed if the Grantor of the TOD Deed is different than the Grantee of the previous deed (probably father as trustee). See an...

Impossible to say. If it was done correctly and there are no other title issues, it should be fine.

Should my wife & I taken the house out of joint tenancy & just have both names on deed for tax purposes?

You can transfer it to Community Property with Right of Survivorship or better yet put in in a Revocable Living Trust.

Witness ignored subpoena now there is an OSC?

Your question is vague but if there is an OSC you better appear or you will be sanctioned, or worse a warrant will be issued for you.

Can my husband accept the papers from a process server that he filed against me?

No he cannot accept them for you. With that said, you know the suit has been filed, best to just get on with it and respond. An attorney can...

What are my rights as surviving adult child after father passes away?

Your rights depend on what the Trust says. If the trust is now irrevocable, you have a right to receive a copy of the trust. Get it and have it...