I have been a successful LNC for over 4 years now, so successful that I have subcontrators working for me. I am not a CLNC as I took another course that was better than the Vicky Millazo course, I thought and I have the same knowledge.
Many programs offer certification. Attorneys do not care if you are certified or not. They want you for your clinical expertise and clinical certifications. However, if you do attend a program that offers certification be sure you ask how long the certification lasts and how you would recertify. In most cases to recertify you must shell out more money to attend classes again - not through CEUs.
Also be aware that there is an nationally recognized organization - AALNC or American Association of Legal Nurse Consultants that is sanctioned by the ANA, which sanctions all the other professional organizations. AALNC also offers a certification similar to CCRN, CEN, etc. It is a more widely recognized certification. If you are interested check out their web site. I am sitting for the AALNC certification as I believe it provides me with better preparation and credentials.
One thing you must remember is that once you complete the training - do not give up your day job. It is a long and difficult road to success. I have friends who paid > $6000 for a course and have not worked a day as an LNC. To be an LNC you must have excellent marketing skills, as you must market yourself to attorneys for work. You also need a business plan, office space, and there are a ton of decisions to make regarding working independently or in a practice. You have to be extremely organized and very attentive to the smallest detail because there are laws you must abide by that you are not taught in school.
Yes this career can be very fullfilling and rewarding, but if you are not willing to put the time into doing it right then you will be wasting your money.