The plan at this point is to bring Lily home, set her up in the master bedroom with her litter box and food in the attached bath. Let the two cats smell each other under the door.
If there are no fireworks I will put the two together to see how they react. If they are sensible, I'll just let them work the details out - if they fight, we'll have to back and and see what we can do.
We don't have any doorways we can leave babygates in - all have to be accessible. I think/hope that Lily and Tashi will remember each other and the accommodation they had previously about territory. But Lily will be moving into Tashi's house so that may not work.
The one time Lily came over to the house and I let her come in, she strolled through, checked out the kitchen and Tashi's dishes, tried one crunchy, then left. Tashi watched her do everything and did not react, just stared. I think that was when Lily had claimed her barn territory and wanted to show Tashi that she was boss.
When we do let them together, I think it will be in the bedroom. There are not the breakables in there and it really is the only room where we can safely limit their movement - the problem with an open plan house!
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