My first property and its a house hack

[Joseph D Chapman]

I'm buying a duplex and we're house hacking it. We are going rent out our current home and I needed a lease, I spoke with an attorney and they emailed me their lease. I'm going to use that lease for my house and the duplex. I'm buying the duplex with a VA loan. Should I refi in like 6 months so I can free up my VA loan in hopes that I can use it again?

Was contacting an attorney to get a lease my best option? 

Also should I get an LLC for the 3 doors? Or should I wait?