The principle of Federalism is most reflected in the US Government & the Constitution's limits on the Federal Government's powers and the reservation of powers for the States. This is set forth clearly in the 10th amendment.
Federalism is evident throughout Government. An example of the US Department of Education. Education is a power reserved to the States and so the US Department of Education funds projects and ensures equity but the power to set curriculums is done by the States.
Talk about the three G's; Gold, Glory, and God.
Also, at the time, land was equal to power. The more land you had, the richer you were. This is a social and political reason, as well as economic.
Hope this helps you. Ask any questions if you need to!
She should try to reduce her expenses as much as possible, prioritizing the things and services she needs and curtailing luxuries.