If your name (or the name of your spouse if filing a joint return) is on the property deed, then you own it. Period. Make sure when presented the options, that you select the ones for "I converted this property to rental in 2019" and "I rent out a part of my home".
Depending on *your* *specific* and *explicit* situation, the program may or may not offer you the option to do the splits for you. If it does not, then you will have to do the math yourself for the property insurance, property taxes and mortgage interest.
