A good way to locate taxi cabs for sale is to search on websites such as Craigslist and NYCityCab, or on taxi-specific websites such as NYCityCab.com. Some cabs include medallions or leases.
In addition to finding the right taxi cab, it is also important to find a well-functioning one. When researching, it is vital to search and find a medium- to high-priced cab; if the price is too low, it is usually that low for a reason. It is also important to read the description and research the taxi type carefully to ensure that the taxi meets the required specifications for use in your city. Have someone who is experienced with cars take a look at the cab and inspect it for potential issues.