Courtesans from non-wealthy backgrounds provided charming companionship for extended periods, no matter what their own feelings or commitments might have been at the time, and sometimes had to be prepared to do so on short notice. They were also subject to lower social status, and often religious disapproval, because of the immoral aspects of their profession and their reliance upon courtisanerie as a primary source of income. In cases like this, a courtesan was solely dependent on her benefactor or benefactors financially, making her vulnerable.
Often, courtesans serving in this capacity began their career as an escort, although many came to the profession by other means. It was not uncommon for a courtesan to enter into an arranged long-term liaison by contract with a wealthy benefactor. These contracts were written up by and witnessed by lawyers, and were binding. Most included some provision for the financial welfare of the courtesan beyond the end of the relationship in the form of an annuity. Many such women became so powerful socially and financially that they could be particular about the men they associated with; in other words they chose their paramour as would any other mistress, not the other way around. Wealthy benefactors would go to great lengths to court a courtesan as a prize, the ultimate goal being a long-term contract as a mistress.