The National Assessor, LLC family of businesses are built on County Public Property Records and the USPS Address Records. NationalPropertyData.com organizes a Multi-County Property Records Database into an easily searchable tool. This foundation supports a very efficient and comprehensive property reporting tools for Property Appraisers and Real Estate Professionals of all kinds. MNCustomerLeads.com utilizes this same Property Database and US Postal Office's Zip code product to build a profession-based Customer Leads generator. This makes it easy for all Businesses to locate Targeted Market Customer Leads making your Marketing Campaign's more cost efficient and more effective for Your Business. We are also in the List Broker Business.