- Main Girder
- Main Water Shut-Off Valve
- Maintenance Fee
- Managed-Competition Lots
- Mansard Roof
- Mantel
- Manufactured Housing
- Margin
- Market Conditions
- Market Value
- Marketable Title
- Masonry
- Master-Planned Community
- Mastic
- Material Defect
- Material Fact
- Maximum Financing
- Meander
- Mechanic's Lien
- Mechanical Systems
- Median Price
- Mediation
- Mello-Roos
- Merestone
- Merged Credit Report
- Meter
- Meter Pan
- Metes and Bounds
- Mint Condition
- Miter
- Mixed-Income Housing
- Mixed-Use Development
- Modification
- Modified Annual Percentage Rate (APR)
- Molding
- Money Market Account
- Money Market Funds
- Monolithic Slab
- Monthly Association Dues
- Monument