It used to be that when people would get a mortgage, they would go to a lender and borrow money. The lender that they got their loan at would hold onto their loan and collect payments from them each month according to the loan terms. Want more articles like this? Create an account today to get BiggerPocket's best blog articles delivered to your inbox Sign up for free In the 1930s, a market was developed for these lenders to originate mortgage loans with their customers and then "sell" them to other investors who then would collect the mortgage payments each month according to the loan terms. Today, it is very common for lenders to sell their loans on the secondary market. In the United States, there are two large buyers on the secondary market for mortgages â Fannie Mae and Freddie Mac. These two entities produce a set of guidelines where if mortgages fit the guidelines, then they agree to buy them. These guidelines outline the basic "rules" of getting a mortgage from them, and part of the outline is a limit on the amount that the loan can be for. Types of Conventional Loans It is possible for a conventional loan to be considered a "conforming" or a "non-conforming" loan. Conforming loans adhere to the guidelines set forth by Fannie/Freddie and also the "conforming" loan limit set out by the two entities. The 2016 conforming loan limits were set at $417,000 for all contiguous states, the District of Columbia, and Puerto Rico and $625,500 for Alaska, Guam, Hawaii, and the U.S. Virgin Islands. For more detailed information, visit this page. Conventional loans have various types of programs, including fixed rate programs, ARM programs, interest-only programs, hybrid rate programs, and balloon payment programs. The easiest way to see what conventional loan program can best help you finance your home? Speak with a lender who helps people follow the guidelines for conventional loans. Any questions about conventional loans? Leave your questions and comments below.