Buying House #2

[Cosmo Iannopollo]

Here's the situation:

In December 2014, I purchased a duplex. My wife and I occupy one half, rent out the other. To purchase this house, I was able to take out an FHA loan and then borrow a little from my IRA (which was paid back). Since then, everything has gone great but my savings hasn't grown as quickly as I'd hoped (apparently weddings cost money).

That being said, I have about $20K in equity built into the house right now. Knowing I cannot dip into savings or another FHA to make a second deal, what are my best options going forward? Right now I'm thinking a Home Equity Loan is best bet (my credit is outstanding, thanks responsible me), as I have no network of investors to pull from.

For more reference, I purchased my house for around $200K and there is a condo down the street selling for $100K. I would love to get my hands on it and think a HEL would be perfect for me. 

Thoughts? What are some things to consider as I pursue this?