All repeats, but in case you've missed them: I haven't read the Adler one, but have read & enjoyed the first two.
Free
http://www.amazon.com/Last-Dance-Red.../dp/B007PJ1MHY
Last Dance in Redondo Beach, by Michael J. Katz.
backlist from roughly 1990, comedic mystery featuring a sportscaster and a down-on-his-luck PI friend, solving sports-industry murders. Stylistically similar to Roger Simon, Donald Westlake, etc.
$0.99
http://www.amazon.com/KILL-LAWYERS-S.../dp/B007UPTH6Q
Kill All the Lawyers, by Paul Levine. Another comedic mystery, part of the Solomon vs. Lord series. An unlikely pairing (both professionally and romantically) of a straight-laced lawyer with a risk-taking, convention-flouting, corner-cutting partner. Sharp banter between the 2 is the hallmark.
Free
Blood Ties, by Warren Adler, direct from his website:
http://www.warrenadler.com/giveaway
"At a family reunion, the Von Kassel family, who has been engaged in arms dealing for a hundred years, find themselves able to create the most destructive weapon on earth."
Part of his rotational give-away program. (This was free I think in early December--since I haven't visited lately, I'm not sure if it's stayed since then?)
While you're there, take a few minutes to read some of Adler's blog. Very perceptive comments on ebooks, the publishing industry, and laws and regulations affecting same.
KentE