Nejame said that Smith voluntarily spoke to law enforcement four times and let them into his house for a full inspection within hours of Parker's reported disappearance.
"They've tailed him," Nejame said. "They've spoken to every person who has basically known him and there's nothing to link him to her disappearance or death."
"Our hearts go out to Michelle Parker's family, truly, but sadly a lawsuit against Dale Smith is not going to bring them any closer to finding out what happened to Michelle Parker," he said.
Nejame said that Smith is working in Tennessee and is a good father. He has custody of he and Parker's twin 4-year-olds. Parker's 10-year-old son is living in Pennsylvania with his father.
Parker's mother Yvonne Stewart used to be "very involved" with her grandchildren's lives, Morgan said, but has not been able to see them. He said Stewart has been "instrumental" in working on a bill to guarantee grandparents' rights.
The bill is backed by Florida House Representative Darryl Rouson and it is expected to come into legislature this session, Morgan said.
"She's been doing well, but I think that when we filed she kind of broke down because it was like, here it is. This is real. This is today. And she's also very grateful to us for championing this cause. There was a lot of emotion."