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.
Concurrent powers refer to political powers that are shared by both the state and federal governments. A number of powers are given to the federal government by the U.S. Constitution, without barring those same powers to each individual state. Such powers as establishing a court system, taxation, and regulating elections are common examples of concurrent powers of federal and state government.