In The Family Man, a sparkling, sprightly comedy — Elinor Lipman's 10th — dapper Manhattan attorney Henry Archer gets the shock of his life when he realizes the receptionist he's just tipped is none other than his stepdaughter, Thalia, whom he hasn't seen in 25 years. Before long, Thalia's back in his life (ensconced in his maisonette apartment, in fact), and Henry's got his hands full with her, his endlessly chatty ex-wife Denise, a new lover, and the countless others who wander in and out of his elegant Upper West Side brownstone. As always, the pleasure of a Lipman book is not so much the wispy plot but the original, funny, achingly human characters. A