Do you use an internet site for the info. In my state some data is not as easy to get a hold of.
Call the assessor’s office of the city or county the property is located in. Tell them what you want and ask if there is a website that has the information. A lot of counties are now online. But if not someone in the office can tell you what you need to know about a property.
SJB
most property appraisers have online websites where you can do a property search and find the sq ftg