Heloc, Re-fi or wait

[James Robert]

Hey Guys, 

I am a Realtor in Cincinnati and I want to purchase an Air bnb condo downtown. I paid 183k for my house and put 5% down. The home appraised for 215k without any of the updates I did. I believe appraisal would come in at 230 now. When I buy properties my broker lets me take home 100% of the commission so I can use that for a down payment on next purchase when it comes to that time. I want to buy now but don't have alot of liquid funds. I bought this house 7 months ago as a primary, I could either wait until Jan and buy this air bnb condo with 5% down and live in it for a year. I would rather somehow get funds to put down 20% on this condo and not live in it and go right to Air bnb'ing it. Should I use a Heloc for a downpayment (it would have to be 20%). Or re-fi out of my comfy 3.25% rate and take some cash for downpayment.. 

Thoughts?
Thanks!