Can a Real Estate Contract be legally valid and enforceable if not all the required parties signed it?

QUESTIONS PRESENTED FOR REVIEW : Respondent Chabad at the Civic Center, Inc. was granted a Judgment in an Specific Performance Case against Petitioner , Alba Duque; The Circuit Court Judge strike a Quit Claim Deed as an evidence in the case without a legal cause; this document was essential for the dismissal of the case. The questions presented are as follows: (1)-Can a Real Estate Contract be legally valid and enforceable if not all the required parties signed it? (2)-When a Quit Claim Deed became legally valid? (3)-Can a Circuit Court Judge disregard a legal document as evidence? (4) Does a Quitclaim Deed Have to be Recorded to be Valid in the State of Florida? | i |