Therese,

Here are Universities that offer Online MA degrees in TESOL::

One is the University of Phoenix,

Another is Alliant International University- www.alliant.edu

Another is National University.

Getting an MA in TESOL is a good strategy, as it will allow you to teach at either US Community Colleges full time, or as a part-time faculty in teacher education for a University.
Yanni Zack, Ph.D.