public class Client
{ public string Id;
   public string Name;
   public List<Addr> Address;
}

public class Addr
{
   public string Place;
   public string Status;
   public string Info;
}

foreach (var tt in cl.SelectMany(b=>b.Address).Where(b=>b.Status=="tytki").Select(b=>new{b.Place,b.Info}))
{
  Console.WriteLine(tt.Place+" "+tt.Info);
}
т.е. из куска выше сделать нечто в таком ввиде
foreach (var tt in cl.SelectMany(b=>new{b.Name, b.Address}).Where(b=>b.Address.Status=="tytki").Select(b=>new{b.Name,b.Address.Place,b.Address.Info}))
{
  Console.WriteLine(tt.Place+" "+tt.Info+" "+tt,Name);
}