We break even on our condo for now.3- Have a full time corporate job4- Have my real estate license (in referral for now) living in our current flip - have another 2-5 years here, rehabbing while we're living in the house with any extra income we have.My questions-1- Where do I start?

This includes maintaining the home in a good condition and no extra people living there. among many other stipulations. 

Thanks for the tip @Lance Lvovsky Any other ideas on how I should go about determining a cost basis when there's basically nothing to go by except perhaps performing a present value calculation based on inflation?

Two, get better at comping the properties (easier said than done--I'm being a little b it light-hearted, you never know what the appraiser will calculate).

Expenses are generally calculated to be 50% of rental income.

The ARV hasn’t been calculated yet. 

If have to file an amended return, then My rate of return  is going to be crushed  by the cost of paying my accountant for the extra work.

I am an all cash buyer so I am trying to figure out the difference between the BRRRR calculator and the rental property calculator.  

My calculation puts it at a 5.65 cap.

More traditional things I would suggest, billing back utilities, charging for pets, upgraded finishes to increase rents, charging fees for things like storage or extra parking.Authors I would suggest Ken Mcelroy and Dave Lindahl.