Help identifying orchids and black leaf spots!

[Punysmurf]

Hello, I'm new to the forum. I recently inherited some orchids from my mother's friend (that's literally all I know about where they came from or how they've been cared for till now). I've only had phals before now, and I have no idea what kind of orchids these are or how to best care for them. I'd appreciate any help figuring out what they are and what's wrong with them!

More about growing conditions: my phals are currently growing in an air-conditioned sunroom with a south and east facing window, plus skylight and soon a grow light that should provide 1000-3000 FC depending on location in the sunroom. There is also a fan and humidifier. I'm located in a subtropical climate with high humidity (zone 9a) but have most of the more tropical plants inside the sunroom. The phals bloom about twice a year. This is the room the new orchids will go in once I make sure they're not infested/infected...

- large orchid with large black spots on leaves, no flowers, in a gallon-sized black pot
- Tall orchid with dark buds, lots of little black spots on the thin leaves
- orchid with little purple fragrant flowers. Maybe a dendrobium?? Looks mostly healthy except one black spot
- orchid that is apparently growing sideways out of the pot...would also appreciate some advice on how to repot this one...
- orchid with a bunch of yellow leaves and brown spots
- phal with pocked leaf (is it a disease? infestation? trauma? genetic?) with my hand in the photo. Only the tip is pocked. It has a leaf on the opposite side that is pocked at the tips as well. New leaf is coming in that looks normal.

Thank you!