If you have a chunk of money to get going I'd personally buy the biggest thing you can if you don't I think house hacking into a 4 plex is great. 

Value your money more. 

However, there are other loans designed for fixer uppers referred to us hard money loans, bridge loans, or fix and flip loans but whatever you want to call them they're essentially short term, interest only loans with no prepayment penalties designed to finance a higher % of your purchase price and typically all of your renovations not to exceed a certain % of the ARV (typically 75% max). 

Hard Money How did you add value to the deal?

Once your emergency account has a reasonable amount in it, whatever that means to you, you might want to think about steering that payroll money into the investment savings account from each pay check and leave the emergency account money as is.

You also need to consider that at a lower percentage of money down you will be paying a Mortgage Insurance Premium or MIP. 

In a really good market, an investor can achieve 1% of the money invested.

@Pranita Maldikar Unless the seller is a family member or personal friend, I'm not sure why you'd want to put that much money down on the property.

They develop, they build, they finance, they property manage, they will have HAO, cleaning crew etc. etc. etc. so the subsidiary companies make money every step of the way.From investor perspective: The investor pay $15 K to reserve the right to purchase 25 multiplex over the year of next 5 years. 5 each year.

You have zero control over the stock market, whereas when you do private lending, you have significantly higher control and contractually guaranteed return on your money.