1031 Exchange - Questions from a n00b

[Latimer Luis]

Hi all, I am new to REI so be easy on me pls. :) this is my first post. I sold my bay area condo in 2013 not knowing the appreciation would balloon over the last 5 years. I was debating on renting it out at the time, but opted to sell because I was scared of having less than $15K in my savings after upgrading to a much larger and more expensive SFH. Probably the wrong move, now that I look back. So where am I going with this ... I just read about 1031 exchanges and now Im curious to know more about it. if I had known about this then, I might have made a different decision. Hoping to get insight from you experts. If I kept my condo as an investment property, would I have been able to 1031 exchange it today for an out of state property knowing the original loan terms were for a primary residence? Secondly, if after some time (lets say 5 yrs or so of renting it out) I made the NEW property my primary residence, would I then be liable for the capital gains tax? Thanks in advance!