My fiance and I are to be married at the end of April.
This love of mine comes equipped with a wonderful personality, sexy attitude, a healthy dose of compatible weirdness, and, most importantly to this thread, two cats.
There’s Gizmo, the Siamese mix, and Sunshine, the dime-a-dozen orange tabby. Both female, both nice adult cats.
Then there’s Queen Anne, lord of my domain. She’s my very ill-tempered, highly territorial, old-lady cat. She thinks I hung the sun and moon and worships the very ground I walk on but hates every other carbon-based life form on this miserable planet. She’s about 14 years old and, except for some obvious hip-joint pain, is in pretty good health. She pretty much hates all other cats and will hiss and spit whenever one comes near. Past experience says that even years of living with another cat does not dull her utter disdain.
When my lady and I move together, her cats will follow come with her. The Queen will not be amused.
The plan is that I’ll actually move into the house my fiance has owned for years, currently occupied by a renter, and that when we marry in a couple months, she’ll move in with me. For a month or two (not being sure is another story) I’ll live by myself in her house.
The problem is how to introduce the cats so to cause the least friction.
My thinking is that if her cats move in when I move in then all the cats are new to the house. No cat will feel territorial and, perhaps, they might all get along. I’m a comparative stranger to her cats, though. Well - they like me enough but I’m not “Mom”. I’m just that guy the see a lot but isn’t Mom-cat.
Another option is to have her cats come with her two months after I move in but I’m worried that Queen Anne will “own” the house by then and her cats’ll be interlopers.
I found some kitty tranquilizers in the pet store and wondered if that might make my cat mellow enough to accept the changes more easily.
Any suggestions on how to blend two cat families?