MFH Househacking Question

[Angel Rosado]

Hey BP family, so I'm planning to a #househack with our initial investment property and planning to use a fha 203k loan in order to buy a fixer upper hoping to add value through renovating.   For those who have experience with househacking, how do you take into account the rent that you are paying? For example, your have a monthly payment (including mortgage taxes and insurance) of 2,100 and can rent out the other apartment for 1,100.  What do you consider the 1,000 that you have to put in? Rent? How do you account for vacancies, repairs, and/or cap ex? Do you take a percentage of the rent on 2100 or 1,100.