I suggest allocating %s and putting certain percentage to work.  

Most of our other HAs allocated two people per bedroom, no matter the sex, age, or relationionship.  

Now allocation of dollars and budgets can be varied.

Expenses must be allocated based on personal days occupied vs. tenant days occupied.

I'm thinking that the $2,000 allocated to online marketing would be better spent marketing for cash investors to sell properties to than for sellers. 

I am allocating part of the security deposit for cleaning and trash removal.Looking ahead, I will be much more rigorous about screening the tenants and enforcing my lease. 

I might allocate 50k of that 100k in to my business income, because im actually doing 50k in work. 

I know there's disclosures needed and time would need to be allocated to each business but I feel like the mortgage broker income would help supplement larger but more spread out paychecks from being a real estate agent while also spending my time and energy in real estate.