Use that sales money to buy more stock. 

This could save you money in the long run, but requires a bigger initial investment.To help you decide, consider these:What's your current budget?

They would be putting in some money and their service as sweat equity, and we would be putting up money and my wife’s services. 

They are basically the same as applicant number one except there is an opportunity for them to make more money with the second person if they chose to work which means higher probability you will get paid on time. 

Quote from @Chris Pontello: Hi Chris,Correct me if I'm wrong as I'm still learning creative financing solutions, but paying them some money would be if I could take over the loan.

But even to this day the money is always the winner not me.. thats how you raise significant capital ..

Quote from @Paul Whitehurst: Many will tell you to borrow money from Property A to purchase Property B, but that's known as over-leveraging and not recommended for a newer investor.

That’s great advice Taz, I’m currently working on saving enough money to get started, house hacking is hard for me at the moment because I just bought a house 2 years ago, I would have to sell my house(which is in a great neighborhood great location) and use that money to fund the duplex which isn’t totally out of the question, I would like to keep the house if possible but also would like to get real estate investing more.

And you probably need money for living expenses.

And that can cost you time and money.