Cross-Reference: Use multiple sources to verify property values and market conditions

Historical Data: Check past sales (typically last 2-3 years) to identify trends

Tax Records: County assessor websites often have property valuations and ownership history

Zoning & Permits: Check municipality websites for zoning, permits, and land use restrictions

Comparable Properties: Always analyze comparable properties in the same area/category

Market Timing: Monitor seasonal trends and economic indicators that affect property values