Marguerite, You really have your hands full! There's some really good threads here on introducing cats and it would be good to read about re-directed aggression as well, also many threads...
Look in 'Forums', under 'Behavior'...
Also, under 'Search' type in 'DIY/Gates' for different ideas, hopefully it works!
Everything from a screen door installed inside to baby gates can work to keep everyone separated.
I know you sound very busy, but if you can get the cats tired out with good play sessions, it might help...
"A Cat must have three different names:
An everyday family name; A particular name;
And the name but the Cat Himself Knows, and will never confess." T.S. Eliot
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.