Death of a Dying Man by J.M. Redmann

Micky Knight just had to get into a butch pissing contest with the journalist partner of a famous doctor working with her lover, Cordelia James, to prove that the skills of a reporter are of no use to a P.I. Now she's stuck with a drop-dead gorgeous assistant and the case of a dying gay man looking for a child he might have fathered. These chains of events--and an act of nature--will tear Micky's life apart in ways that may never be put back together. Fifth in the Lambda Award-winning Micky Knight mystery series.