Need advice. Have the clear deed to my first duplex.

Here we go, my first post.

I closed on my first rental property on Dec 31st. A brick duplex in decent shape. Only paid $40k for it.

Paid cash with both sides rented for $625/month. That is correct, this 40k property is throwing out $1250 a month, minus 10% property management fee, $57 month landlord policy State farm and $125/mo property tax. I paid cash from my savings and have clear deed and title. I formed a single member LLC with the Sec of State for $110, hired a CPA and the first of January came and both tenants paid their rent on time. I work a regular job and so does my wife, I have a 700 + FICO score. I have found my next property and need to pull $20k out of the first property to buy it. What is the best route to get $20-25K out of my first rental? Refi w/cash out or equity line, I own it free and clear? Who will do it the fairest and simplest without me being in the rental business for less than 2 years?

Thanks