Keep or Sell?

[Aileen Ouyang]

I have a condo currently cashflowing about $250 a month ($2250 rent - $2000 PITI + HOA). I have about $100k equity in it. It is currently on a 15 year schedule and I have 12 years until paying it off. The interest rate is 2.375% so I am having a hard time letting go of the excellent rate.

My question is: To scale from here, should I sell it and buy a fourplex as a house hack? I understand it depends on the deal, but just wondering if this is the right direction to consider. 

Living in MN.