@Stephen Foltin
Jason is right. $300, at best, to account for vacancy, CapEx, repairs, etc. is far too slim to create a cash flowing property. You could rent the condo and potentially break even in hopes for future appreciation or you could sell it and use the money for a future investment. You could also keep it and use it as a line of credit depending on how much equity you have.
Duplexes in Charlotte are extremely rare. When they do pop up, they are often in very rough condition and overpriced. There are plenty of SFH's in South Charlotte that will cash flow.
You can definitely get a 5% down loan on a duplex or SFH as long as it is owner occupied for 1 year. Almost any lender will give you that. You could even get a 3% or 3.5% down loan.
I would consider saving up a little more than $10k at your expense before you purchase your next property- especially if you decide to keep the condo. A down payment, closing costs, immediate repairs, or a low appraisal could eat up the majority of that $10k right off the bat.