Arbitrary rules with harsh enforcement on your units, no enforcement on his own, for example. 

He agreed to join in investing with me and work for me for no costs at the start of our business (all income would be going back into the business until it's financially self-sufficient)On top of that HUGE benefit seeing as contractors absolutely drain cash during a rehab, my dad told me that he will possibly help financially support me in the start of my business.

No depreciation and too many rules. 

There are self rental rules in the Internal Revenue Code to prevent this. 

I'm an Airbnb host, I have 4 that I own, rehabbing 3 more than will be airbnbs as well, after that I don't plan to buy more, just rent and make it an Airbnb, when you talk to the owner you have to explain the benefits of letting you do Airbnb (house continually kept up and clean, great airbnb reviews with solid house rules, I plan to offer to fix any minor issues so he's totally hands off unless it's a big issue with the house).

@Shaun MorganShaun,  Some generals numbers for you; 2% rule (search the millions of hits on any search engine), Return on Investment (ROI), Cash on Cash returnCome up with a standard for these any other other number you can calculate.  

That put me all in at $120,000, and I got 3 college students renting the place out at $1200 a month, meeting the 1% rule.   

Thank you John and Christina I appreciate the support! 

@James Edgar @Evan McLeishI put properties under whoever can support them to get approved. 

I know this is impossible to answer with a blanket number, but is there a rule of thumb or conservative figure that most end up seeing?