What Is The Difference Between Fha And Conventional Home Loan Conventional Refinance No Appraisal Conventional Loan Vs Fha 2017 80/20 Mortgage Lenders The 40 year mortgage is supposed to lower your monthly mortgage payments while the 80 20 mortgage will increase your monthly payments because of the addition of the second mortgage. Both the 40 year mortgage and the 80 20 mortgage are fairly extravagant mortgage products that will only be utilized by a minority of home buyers across the nation.Comparison of minimum requirements on FHA loans and Fannie Mae HomeReady. In high-price markets, both FHA and conventional loan limits go up to $636,150. Differences in Qualifying for FHA vs. Conventional Loan. FHA loans have looser credit requirements, but come with a lower loan limit in most US counties.Conventional Loan Vs Conforming Loan All mortgage loan programs breakdown under the hub of Conforming loans. conforming loans-refer to the loan size meeting the category of a Conforming Loan for the area in which the property is located. For our purposes will be looking at single family residences-one unit properties.