Thanks for your answer. So basically I convert the existing rental to personal property and then add 2 new rental property assets - the house and the ADU separately using the cost of construction of each unit as the asset cost.
The ADU is separate but it may not always be a short term rental. What about the scenario that it's sometimes a short term and sometimes a long term rental? Couldn't I depreciate over 27.5 years in that case?
