Answer:
lease their own houses and mansions to accommodate people.
Step-by-step explanation:
During the late 1800s and early 1900s, cities popped up and grew exponentially in different parts of the country, especially in the North, with the coming of the Early Industrial Revolution.
With this growth, there was also a huge influx of immigrants and rural Americans to the cities which led to overcrowding. Consequently numerous social problems like inadequate housing, unclean water, crimes, etc. arose in many parts of the cities.
In order to tackle these problems, reformers started to lease their own houses and mansions to accommodate as much people as they could. The Hull House was one among such buildings that accomodated poor people and low income families.