I'd appreciate advice from the BP Multifamily investor world on how to make accurate and conservative estimates on how much $$ I should expect to allocate towards capex/repairs. 

They are very conservative. 

Being new to this I am estimating based on numbers I'm seeing from the BP calculators and from other posts I see for these kinds of things, trying to account for all eventualities as a "conservative" estimate hoping that I would have  expenses to cover the unexpected.I also appreciate your advice about managers and using a handyman as a proxy, paid hourly.Account Closed - Definitely not an equity play, just trying to understand how to make these numbers and deals make sense.

Always a good thing to be conservative!

I typically budget $100-120/unit/month for general maintenance (depending upon age & condition of the structure), and 8% for vacancy (which I find to be on the conservative side).

Even conservative expectations are quite high.

Market price dictates at least each unit could rent for $700 each but I would only go up $50 for now, making the total income $1950, and this is being conservative. 

So while it’s more difficult to recruit investors when your projections are conservative, it’s much easier to retain them.  

I was conservative on my numbers and a chance it could be closer to 100 but still not huge.  

Conservative investors that pay down mortgages at best garner a 3-4% return on total investment.