Good advise eslguy.
I would add one thing. Reputable academies in South Korea sign with a company stamp in red ink.
The hiring officer of the school who stops at a handwritten signature has no intention of honoring the contract. (A fine example: Ahil English School).
Legally, handwritten signatures on employment contracts are worth nothing without that company stamp.
Having said that, I must add that, in some parts of Korea, with enough power or enough money, or enough juice cases, some authorities will accept anything.
ANET
http://www.lilith-ezine.com/articles/politics/Dont-Teach-in-South-Korea.html
This linke provides some objective material, regarding the subject.
Helpful Tip #1.
Newbies, DON'T SIGN AN UNSIGNED CONTRACT. Make sure YOUR boss (noboby else) signs the contract first before you do............and intitials each page. Then, you do the same.
Helpful Tip #2.
If you find yourself in a jam with your employer .......and eventually, most of you will, make sure you record EVERYTHING he/she says on an Mp3 player.
Don't teach in Korea.
eslguy