Tax Sale Investing With GIS The Ultimate Guide to Researching Tax Lien and Tax Deed Properties

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As a tax sale investor, having access to geographical information systems (GIS) is crucial for conducting thorough research on tax lien and tax deed properties. In this article, we will explore the power of GIS and how to utilize it effectively in your tax sale investment business. We will take a look at two different GIS systems, Dallas County and Miami Dade County, and delve into the key features and tools they offer. So let’s get started!

Step 1: Accessing the Dallas County GIS System

To begin our research, we will start by accessing the Dallas County GIS system. Once on the website, we will agree to the terms and conditions and proceed with our search. In this example, we will search for properties with the last name “Jones”. By entering the search criteria, we are presented with a list of properties related to our search. Clicking on a specific property will provide us with more detailed information such as appraisal value, square footage, and tax details.

Step 2: Analyzing the Property on the Map

Upon accessing a property, we are presented with a map that displays the location of the property. However, it is important to note that sometimes the map may not accurately represent the actual location of the property. It is advised to zoom out and view the surrounding area for a better understanding of the property’s location. Additionally, the map may indicate important features such as street frontage, road access, and neighboring properties.

Step 3: Exploring Additional Layers and Tools

To gain further insights into the property, we can utilize the various layers and tools provided by the GIS system. By clicking on the layers button, we can access information such as flood zones, subdivisions, utility lines, and topographic maps. These additional layers can provide valuable information and aid in making informed investment decisions. It is important to be cautious not to overload the map with too many layers, as it may become difficult to interpret the information.

Step 4: Examining the Miami Dade County GIS System

Moving on to the Miami Dade County GIS system, we will follow a similar process to access property information. After entering the address into the search bar, we are presented with a standard street map. However, by switching to the aerial view, we can obtain a highly detailed image of the property. This aerial imaging feature is particularly useful for visualizing the property and its surroundings.

Step 5: Utilizing Tools and Layers in Miami Dade County GIS

Similar to the Dallas County GIS system, the Miami Dade County GIS system offers various tools and layers to enhance the research process. By exploring different layers such as health statistics, land information, and transportation, we can gather valuable insights about the area surrounding the property. For example, we can find information about nearby schools, childcare centers, and other amenities.

Step 6: Understanding the Differences in GIS Systems

It is important to note that while the general concept of GIS remains the same, each county may have its own unique system with varying features and tools. Therefore, it is essential to familiarize yourself with the specific GIS system you are using. Take the time to explore and experiment with different buttons and options to understand their functionality and how they can benefit your tax sale investment business.


In conclusion, utilizing GIS systems in tax sale investing can greatly enhance your research process and help you make informed investment decisions. By accessing detailed property information, examining maps, and utilizing layers and tools, you can gain valuable insights into tax lien and tax deed properties. Remember to be patient, as each GIS system may have a learning curve, and take advantage of the resources available at Tax Sale Academy for more detailed information on utilizing GIS systems and other research features. Start utilizing GIS today and unlock the full potential of tax sale investing!

For more information on tax law investing and real estate, including a comprehensive guide on using GIS, property pressure reports, and Google Maps, visit Tax Sale Academy. Don’t forget to pick up your copy of the Tax Sale Playbook to further enhance your tax sale investment journey. Happy investing!

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