Absent aggravating or mitigating circumstances, upon application of the factors set out in Standard 3.0, the following discipline is generally appropriate in cases involving failure to provide competent representation to a client:
4.51. Disbarment is generally appropriate when a lawyer's course of conduct demonstrates that the lawyer does not understand the most fundamental legal doctrines or procedures, and the lawyer's conduct causes injury or potential injury to a client.
4.52. Suspension is generally appropriate when a lawyer engages in an area of practice in which the lawyer knows he or she is not competent, and causes injury or potential injury to a client.
4.53. Public reprimand is generally appropriate when a lawyer:
(a) Demonstrates failure to understand relevant legal doctrines or procedures and causes injury or potential injury to a client; or
(b) Is negligent in determining whether he or she is competent to handle a legal matter and causes injury or potential injury to a client.
4.54. Private reprimand is generally appropriate when a lawyer engages in an isolated instance of negligence in determining whether he or she is competent to handle a legal matter, and causes little or no actual or potential injury to a client.
Ala. S. Att'y Discip., SECTION II, C, Standard 4.0, Standard 4.5