After you file

My ex-husband left the City and his sister is still living at the house. I support her. My ex cannot - he lives outside of the City in a small apartment. She needs access to her Dr's. 

 

I think I have to ammend my return and once this year's (2020) is processed ammend it to head of household also. The TT software does not allow me to pick HOH although I have a qualifying family dependent in my household that I support 100%.