Madonna's lawyer Alan Chinula tells Usmagazine.com he is confident that the judge will allow the singer, 50, to adopt 4-year-old girl Chifundo "Mercy" James at Friday's hearing.

"I am not sleeping sleepless nights over this," Chinula tells Us. "I don't see any law in Malawi that can stop this adoption."

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On Tuesday, a rep for Madonna confirmed for the first time that the singer is adopting the girl, whose unwed 18-year-old mother died soon after she gave birth.

Chinula tells Us the girl's uncle, Peter Baneti, "has already signed off the consent forms, and Madonna counter-signed them."

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"She just has to wait to hear from me when I get the result" on Friday, he says. She is not required to attend the hearing, Chinula adds, "although she can attend if she so chooses."

Several non-governmental organizations have called the Human Rights Consultative Committee, slamming Madonna's adoption attempt because the groups feel the child should be taken care of by her own family.

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The organizations also accuse the singer of using her wealth and celebrity status to bend Malawi's adoption laws. (The singer, who adopted David Banda in 2006, has not followed regulations that stipulate that prospective parents must undergo an 18- to 24-month assessment period in Malawi before adopting.)

But Chinula tells Us that law is over 50 years old and "archaic."

"Laws must be dynamic," he says. "They must move with current trends."

Photos: Madonna in Malawi