Guard dogs added in following locations:

Homes:
Baenlin's house basement
Magrum gra-Orum's Basement
Willow Bank basement
Alberic Litte's Basement
Casta Scribonia's Basement
Adrian Decanius' Basement
Dul gro-Shugs House Basement
Herminia Cinna's basement
Jastia Sintav's Basement
Jakben Imbel's BasementX2
Ulen Athram's basement
Umbacano's Basement
Umbacano's Attic
J'mhad's Basement

Taverns:
The King and Queen Tavern basement

Shops:
A Fighting Chance 
Divine Elegance
Edgar's Discount Spells
First Edition
Jensine's "Good as New" Merchandise
Mystic Emporium
Red Diamond Jewelry
Rindir's Staffs
Slash 'N Smash
Stonewall Shields
The Best Defense
The Feed Bag
The Gilded Carafe 
The Main Ingredient 
Three Brothers Trade Goods
Warehouse 


The Copious Coinpurse (Thoronir's shop) has two dogs in the basement that are a bit stronger than regular dogs


Pet Dogs added to following locations:
Bleakers Way
Bravil Stables
Cheydinhal Stables
Chorrol Stables
Imperial City stables x2
Ill Omen inn
Leyawiin Stables
Pells Gate
Skingrad Stables
Wenyon Priory (outside sheepdog and interior pet dog)