just read the first three books in the Cool and Lam series by Erle Stanley Gardner (writing as A. A. Fair), it's pretty entertaining
Bertha Cool, who runs the detective agency, is a big, fat, profane, intermittently grandmotherly dame in her fifties who's tough as nails and always out for a buck
and our narrator, Donald Lam, who works for her, is a shrimpy little bastard of an ex-lawyer, in his twenties and too smart for his own good, who's constantly getting beaten up and keeps falling in love with murder suspects
(my favorite bit so far was in the first book where Donald gets badly beaten up by a hired thug and then tenderly fixed up by the same thug, it was amazing)






