While Andrew, Helena, and Oliver were in the Silver Moon buying the dancers, Carolina in the company of Victor, three guards, and two members of Shadow who secretly followed them, had gone out to hire the rest of the staff they needed.
Since Victor would become the night manager of the Heavenly Palace, he accompanied Carolina in this hiring. Since the number of people they were going to hire was high and from different specialties, Carolina played it safe and approached the merchant guild.
The merchant guild is a state entity that regulates all merchants so that they do not carry out lawful activities and also issue of taxes.
However, they also function as a job bank. Merchants can go there looking for employees and thanks to the information network of the merchant guild they can easily find what the merchants need.