He will want an administrator/custodian that is 1) Reputable2) Responsive & helpful regarding organizational structure and allowable transactions.3) Reasonable feesI have searched the internet, and it looks like the Gold investment shops have spent more money on SEO than the real estate folks.

In the future, you should determine condition at the time you take possession for instances like this.

Regardless you need to determine along with whoever you are borrowing from what you want to do, loans are the most common but partnerships are not unheard of, however if you are raising small amounts from a lot of people you may need to talk to a lawyer to make sure you are following SEC rules.

Im very young so I am new to this, but in theory lets say I finance a property with the 60k how do you determine how much you rent out the property for? 

Is there a calculator or something like that, that could help figure the numbers and determine what rate of cash flow I would need to get.

Doing the actual repairs would not be allowed, but you could determine what needs to be fixed, who will do it, at what cost, etc.

How  can we determine property tax for our balance sheet once rehab is done and renting 25 units? 

I've seen signs on the side of the road advertising $250 and I'm guessing that is you get what you pay for but calling a couple places from the internet hasn't been productive either.

They are determined by what your lease says and what CA law states. 

What's the easiest way to determine whether a rental property is "performing" well enough to keep it?