Residence Homestead Exemption Application (includes Age 65 or Older, Age 55 or Older Surviving Spouse, and Disabled Person Exemption). In-county (in-district): A person currently residing in Dallas County who has lived in Texas for the past 12 months.I would like to establish residency in TX as quickly as possible. Looking online, these look to be the steps: 1. Both documents must contain the individual's name and residential address. This video covers how to fill out Texas Residential Homestead Exemption with a focus on Bexar County.