In Harper Lee’s novel “To Kill a Mockingbird,” the character Aunt Alexandra comes to stay with the Finch family for a number of reasons.

Firstly, Aunt Alexandra comes to stay with the Finch family in order to provide support and assistance to her sister, Atticus’s wife, after the birth of their daughter Jean Louise, also known as Scout. Aunt Alexandra is a maternal figure and is willing to help care for the new baby and provide support to Atticus and his wife.

Secondly, Aunt Alexandra also comes to stay with the Finch family in order to provide a female influence and role model for Scout. Aunt Alexandra is a strong and capable woman who represents traditional Southern values, and she hopes to teach Scout the importance of femininity and ladylike behavior.

Finally, Aunt Alexandra also comes to stay with the Finch family in order to help Atticus raise Scout and Jem, his two children. Atticus is a single father and is often busy with his work as a lawyer, and Aunt Alexandra sees it as her duty to help him raise his children.

Overall, Aunt Alexandra comes to stay with the Finch family in order to provide support and assistance after the birth of a new baby, provide a female influence and role model for Scout, and help Atticus raise his children. Her presence serves as a major turning point in the story of “To Kill a Mockingbird,” and helps to shape the lives and development of Scout and Jem.