For a man to marry a woman from a mafia family, he would need to demonstrate his trustworthiness, loyalty, and willingness to follow the code of the organization. This can involve undergoing rigorous rituals and proving oneself in various ways. Similarly, a woman marrying into a mafia family would need to show her devotion and her family's suitability for alliance.
It's important to note that involvement with the Sicilian mafia often comes with significant risks and implications, including the constant threat of violence, legal repercussions, and social ostracization. Therefore, any individual considering such a union would need to be fully aware of and embrace the lifestyle and consequences associated with joining this criminal organization.