Hypothetical question:
Jonathan and Anthony own a triplex 50-50.
If Jonathan is currently living in 1 of the 3 apartments of a triplex, Anthony is living in the other apartment unit and they do Airbnb in the third apartment for income.
They are both currently splitting all costs of the building 50/50, including heating, electricity, property taxes...
Jonathan then bought a home for his family and he'll be moving into the new house. Anthony will be moving into Jonathan's apartment unit and they will be renting out Anthony's unit. So in total, there will be 2 of 3 units rented, and him living in one. Jonathan will not be living in this building anymore.
The question: Let's say, hypothetically, they made 2400$/mo in rental income from the 2 apartments, had an expense of 2100$/mo for the entire building. Anthony is living in one apartment unit and Jonathan is living in his new house. How do you calculate what is right for both of them? Do you just split 150$/mo (2400-2100=300/2=150)? How do you get the correct calculation?