Yes, you are correct the $ 15,000 is against Farbos, his wife, de Medeiros and his wife as part of the attempted assumption of the assets of Biocognisafe which was halted.
The $50,000 is a guarantee retained after the October 31st judgment. To wit:
REASONS and JUDGMENT (Deliveries forthwith) ... [9] FOR THESE REASONS, THE COURT:
[10] REJECT the request of the defendants in order to make declare validates the exercise of a right of withdrawal.