Fostering with a dog aggressive dog?

[ClaimedByMe]

I am awaiting someone to come out and homecheck us this afternoon for emergency/overnight fostering, we already have an adopted dog from the same rescue but she is dog aggressive. I am prepared to only do a maximum of 2 nights emergency fostering due to our dogs aggressive nature, I will invest in a crate for any foster dogs and also a muzzle for my dog, the dogs will never be alone with each other and never walked together unless there are 2 people to walk them, any other suggestions that I can put to the homechecker to let her know none of the dogs will be in any danger?

This strikes me as a bad environment for a foster dog who will surely already be distressed with her situation, without adding a dog aggressive housemate into the mix?

I wouldn't bank on the foster dogs being crate trained tbh, you may get them to use it under supervision in that time but not safely alone if they've not used one before or you get a dog that's been locked away and/or frightened in a small space/crate, and that means there is a fair possibility that your dog must be crated and restricted for as long as the other dog is in the house.
Foster dogs need a lot of individual attention and are often agitated and hard to settle after such disruption, not a good mix to help keep your dog calm and feeling unthreatened.

It seems unfair to both resident and foster dog really.
I would want to know how you will meet the needs of your resident dog (keeping their usual routine) and the foster dog. If your dog gets shut out every time a new dog comes in, this is unsettling and may well exacerbate problems, if you are restricting a foster dog significantly then I wouldn't be happy either.
I just can't see how your dog benefits from this - she doesn't, or will be ok with it - probably won't.