Lavelle Law Ltd., based in Schaumburg, added Andrea M. Silva, Mélyse Mpiranya, Kiran Gill and Frank Portera as associates.Silva joins the litigation and family law practice groups.Mpiranya is a member of the estate planning and administration practice group.Gill joins the litigation, employment law and immigration practice groups.Portera is a member of the business law practice group.• Dechert LLP elected Sara B. Roitman as a partner, effective Jan. 1.Roitman focuses her practice on product liability, class-action and …