Investment property Equity questions

[Joe Johnson]

I bought this duplex property 4 yrs ago for 10k through a hard money lender. The property value is about 50k now. I currently have a tenant in the unit and I would like to pull equity out of the property and pay the hard money lender off and buy another investment property next door. My scores are mid 600's what would be my best options. Also, I have never had an actually mortgage through a bank reporting on my CRA. I also saved enough money for a down payment on my first home that I would like to live in. I live in Texas. What would be my best options and steps to meet all my goals?