Investors & landlords

I purchased my house in 1992 for 52K and lived there until 2008. It was paid off in 1998 so there was no mortgage on it. In 2008, I moved in with my son at his house and rented my main house (the subject property) off and on until last year. In 2019, I transferred the deed into my sons name as a gift for $1. The current value of the property is probably 100k. What is my tax liability if any? Do I need to file form 709? Can you confirm whether TT supports this form?