As already established, the property is a 5-unit. 

The added variable is my fiancé has a sister, whom her parents want to leave something to when they pass (they are 80 and 70 years old, respectively). 

I know it has been a while since you posted this and while my partner and I have both established HELOCs, I have been thinking again about what you said here.

@Anthony Zotto I hope you purchased a good deal because it's time to go to work and establish a new order. 

Many of these properties are undervalued and can provide great returns once you establish solid tenants.I'd be happy to guide you through your options, whether you're interested in house hacking or building an investment portfolio. 

I saw someone I know who I respect a lot who just created a raising $ course and they struggled to raise a few million over the past few years.

May negative cashflow until fixed.3) Buy established business: assuming you mean something other than real estate related.

BiggerPockets is an excellent platform for networking and establishing connections.

Obviously it is always a good idea to respect folks time, but find someone who also has skin in the game, investing where you are investing, can talk about their experiences, and also has built a network of folks who can support you after the transaction as well. 

Metro Atlanta, generally speaking, respective markets 30 to 45 minutes from the City, will be tight on cash flow unless you implement a creative investment strategy, such as short-term rentals, medium-term rentals, or rent-by-the-room properties, or allocate at least 30% to 35% towards your downpayment if you intend to hold the property as a long-term rental.