Yes, we will be able to live in our own house and not throw away our money in rent, but we will lose all the cash flow because we will need it to cover the primary residence mortgage. 

Only mortgages as debts which are covered by rents.

The first year was tight because of higher interets rates, but his tenants effectively covered about 70% of his living costs.

Some reasonable- a roof and ceiling repair from a major leak... some not so reasonable (they literally made me escrow the cost to add a deadbolt to a door).

There are 1920-1930 vintage properties  with recently updated mechanicals and a new roof and there are the same vintage properties that need work. 

And you avoid things like damaged properties (guest insurance from airbnb or prop manager themselves cover that), evictions, collections, etc.   

Umbrella insurance is crazy cheap for the benefit, and it already requires you max out your liability on your other covered items.

Should I present the expenses to all three tenants and ask them to cover the charges?

Most mastermind courses don't cover this, and even the "capital raising" specific ones don't do much of real value here.  

(Be sure to factor in vacancy, PM fees, maintenance, etc in addition to PITI)•Do you have additional reserves to cover unexpected expenses like long than expected vacancies, high turnover costs, or major repairs (e.g., HVAC or roof replacements)?