M margin For an adjustable-rate mortgage (ARM), the amount that is added to the index to establish the interest rate on each adjustment date, subject to any limitations on the interest rate change. master association A homeowners' association in a large condominium or planned unit development (PUD) project that is made up of representatives from associations covering specific areas within the project. In effect, it is a "second-level" association that handles matters affecting the entire development, while the "first-level" associations handle matters affecting their particular portions of the project. maturity The date on which the principal balance of a loan, bond or other financial instrument becomes due and payable. maximum financing A mortgage amount that is within 5 percent of the highest loan-to-value (LTV) percentage allowed for a specific product. Thus, maximum financing on a fixed-rate mortgage would be 90 percent or higher, because 95 percent is the maximum allowable LTV percentage for that product. merged credit report A credit report that contains information from three credit repositories. When the report is created, the information is compared for duplicate entries. Any duplicates are combined to provide a summary of a your credit. modification The act of changing any of the terms of the mortgage. money market account A savings account that provides bank depositors with many of the advantages of a money market fund. Certain regulatory restrictions apply to the withdrawal of funds from a money market account. money market fund A mutual fund that allows individuals to participate in managed investments in short-term debt securities, such as certificates of deposit and Treasury bills. monthly fixed installment That portion of the total monthly payment that is applied toward principal and interest. When a mortgage negatively amortizes, the monthly fixed installment does not include any amount for principal reduction. monthly payment mortgage A mortgage that requires payments to reduce the debt once a month. mortgage A legal document that pledges a property to the lender as security for payment of a debt. mortgage banker A company that originates mortgages exclusively for resale in the secondary mortgage market. mortgage broker An individual or company that brings borrowers and lenders together for the purpose of loan origination. Mortgage brokers typically require a fee or a commission for their services. mortgagee The lender in a mortgage agreement. mortgage insurance A contract that insures the lender against loss caused by a mortgagor's default on a government mortgage or conventional mortgage. Mortgage insurance can be issued by a private company or by a government agency such as the Federal Housing Administration (FHA). Depending on the type of mortgage insurance, the insurance may cover a percentage of or virtually all of the mortgage loan. See private mortgage insurance. mortgage insurance premium (MIP) The amount paid by a mortgagor for mortgage insurance, either to a government agency such as the Federal Housing Administration (FHA) or to a private mortgage insurance (MI) company. mortgage life insurance A type of term life insurance often bought by mortgagors. The amount of coverage decreases as the principal balance declines. In the event that the borrower dies while the policy is in force, the debt is automatically satisfied by insurance proceeds. mortgagor The borrower in a mortgage agreement. multidwelling units Properties that provide separate housing units for more than one family, although they secure only a single mortgage. multifamily mortgage A residential mortgage on a dwelling that is designed to house more than four families, such as a high-rise apartment complex. multifamily properties Fannie Mae provides financing for multifamily (buildings with five or more units) rental properties through a nationwide network of mortgage lenders.