Is Marshy a male or female? If both are puppies - you probably won't have to worry too much.
I'd introduce them on neutral territory if possible and if not possible, then in your yard where there is lots of space. Try not to introduce them in a tight, confined area.
Pick up any high value treats or toys so there won't be any squabbling over them right away. Pick up Edward's food bowl so he won't feel like he has to guard it.
Cross your fingers and have fun watching them play!
__________________  Mommy to Lucy, Ringo, and Matthew |