Newbie: Analyzing First Deals

[Francois Acosta]

(I wont be buying this, its for practice purposes only) Hi BiggerPockets members, I'm fairly new to real estate investing and would like help analyzing this property. I have heard the entire BiggerPockets show and now want to get into analyzing deals. (Wanted to familiarize myself with real estate language first) If, I were to crowd fund/private money for the downpayment when would I be paying back the investors? If this were a good property? I would get a conventional mortgage for the loan. 

This is the property: https://www.realtor.com/reales...

The property is a main house 3bed/2bath + a fourplex in the back 1bed/1bath

The property is listed for: $749,000 I could negotiate the price lower?

Down Payment: $150,000

Principal & Interest: $2,791

Property Tax: $780

Home Insurance: $187

Total Monthly Payment: $3,758 this is the price I would pay to the mortgage every month?

Maintenance Expense: $12,000 this is per year? What does it typically include?

Gross Schedule Income: $79,000 what does this include/mean?

Insurance Expense: $4,000 per year? What does this mean?

Trash Expense: $4,800

Those are all the numbers available can you help me break down? How much are the rents? How long will it take to pay back investors if I were to syndicate/crowd fund/private money route? How does it break down?

Thanks