You need to pay a debt you own while increase your brothel's fame.
You can decide what kind of brothel you manage; you can change the target client's genders and likes, also select the applicants you like to work in the brothel through publicity.
By hiring services you can ease the management and unlock more functions.
Fame
The fame inscrease when you accomplish certain conditions, such as: number of floors, level of the rooms, level of the workers, services, ect.
Floors
Build more floors to allocate more workers.
Rooms
Upgrade the rooms to increase the happiness recover and earnings of the occupants.
Workers
The workers can work only when they are allocated in a room.