There are First Mortgages and Second Mortgages, the former designed to allow you to purchase the home or totally refinance the original loan; the latter, also known as a Home Equity Loan, allows you to use your available equity to take out a subordinate loan in addition to your First Mortgage.
Many powers belonging to the federal government are shared by state governments. Such powers are called concurrent powers. These include the power to tax, spend, and borrow money. State governments operate their own judicial systems, charter corporations, provide public education, and regulate property rights.
The Constitution grants certain powers only to the federal government. These powers are called the enumerated powers. Some powers are granted only to the state governments. These are called the reserved powers. Some powers belong to both the state and the federal government. These are called concurrent powers. There are several examples of enumerated powers. Only the federal government can make treaties with other countries. If the United States goes to war, the federal government will make the peace treaty.