The lawyers can answer better than I, of course-I think Morgan & Morgan could sue the A's if they thought they would win, no doubt.
And I do believe that Mr. Morgan cares about what happened with Zenaida, in addition to what happened to Caylee and feels the A's have responsibility in the whole slander.
However, many civil lawyers are extremely cautious when it comes to these suits, because if one piece of the puzzle is missing and the jury does not find the defendant responsible, the law firm would have put out man hours and money that they may not get back if they are on a contigency basis. Not to mention horrible PR if they appear to be badgering the Anthonys.
Let's look at the suit against KC-JohnM is being so thorough that he does not only want to show that KC mislabeled Zenaida, falsley accused her or embarrassed her-He wants to show that KC lied a malicious lie. An informed malicious lie. Informed because KC knew that NO Zenaida kidnapped her baby. Informed because KC knew there was no baby to kidnap.
Can he get that deep with CA and GA as far as showing that they lied about Zenaida? I think so, but how much risk is involved in whether a jury believes it? Maybe a jury will believe that CA & GA were on anti-depressants and not so responsible, or maybe a jury will think it's all KC's fault, why blame CA/GA for what KC told them? Right now, it has to be a business decision, IMO. Maybe a little PR, too-Maybe the Morgan firm does not feel it is the right time to go after the Anthonys, maybe Zenaida is as compassionate as Yuri Melich has been-dunno.