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| NAI Network of commercial real estate brokerage companies has offices worldwide. See property listings and a list of services, such as auction sales. | |
| InSite Space Directory Register free and search for office buildings based on market location, building or location name. | ||
| PropertyGO Offers a detailed listing of commercial property to buy or lease. See ad rates and get industry data. | ||
| Commercial Real Estate Network Resources for Certified Commercial Investment Members, accredited realtors and customers. With course schedule and library. | ||
| CoStar Group Commercial property research tool of real estate brokers and owners. Resources for property buyers now available. | ||
| Loop Network Locate free listings of commercial real estate for lease or sale. Search for properties, add new ones, or read the industry news. | ||
| City of Chicago Real Estate Information Chicago Real Estate Information Guide. | ||
| Commercial Real Estate Exchange Search for industrial, office, land, retail, lease or other commercial properties by location or lister. A fee applies for listings. | ||
| Vantex Realty Services Resource for those in the commercial real estate business, offering advice, tips, and techniques for managers, landlords, and advisors. | ||
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