Mary Kay Andrews (aka Kathy Hogan Trocheck)
(I haven't tried her Weezie & BeBe series, but now that I am aware of it, I am going to! I love Trochek's Julia Callahan Garrity series, but judging from the last book's publishing date, I fear she may have completed the series. Let's hope not!)
WEEZIE & BEBE Series:
Main Characters: Eloise (Weezie) Foley, Antique Dealer, Recently Divorced, & BeBe Loudermilk, Restaurant Owner, 3X Divorced, Savannah, Georgia

Little Bitty Lies   '04
Hissy Fit   '05
Deep Dish     '08  (Not a mystery...)
 

As Kathy Hogan Trocheck:
TRUMAN KICKLIGHTER Mysteries:
Main Character: Truman Kicklighter, Journalist, Retired, St. Petersburg

1. Lickety-Split    ‘96
2. Crash Course    ‘97

JULIA CALLAHAN GARRITY Mysteries:
Main Character: Julia Callahan Garrity, Cleaning Business Owner, Atlanta

1. Every Crooked Nanny   ‘92
2. To Live and Die in Dixie   ‘93
3. Homemade Sin   ‘94
4. Happy Never After    ‘95   
5. Heart Trouble    ‘96
6. Strange Brew    ‘97
7. Midnight Clear    ‘98
8. Irish Eyes    ‘00