I agree with what's been said so far.
- make sure the pot has a hole that is not blocked (prop it up with pencils or chopsticks or at least bamboo skewers).
- tell DH to remove any standing water from the saucer. If you let him use the turkey baster, he'll probably get it right.
Maybe have him give it shade, like by bringing it inside.
If he can't give it shade, but has a spray bottle, maybe mist the leaves.
- - - - - (Is that OK to do for succulents?)
If there is fertilizer anywhere in the house, tell him not to use any fertilizer. Just like overwatering, it is much easier to kill a plant by over-fertilizing then by under-fertilizing.
When you transplanted, was the potting mix loose and open, sandy and gritty, hence fast-draining and well aerated? Or was it fine, heavy soil prone to compaction? I'm guessing that most succulents want grit and bark chunks, not soil or peat moss.
I see the pot is shallow, so an inch or so of perched water would kill roots in the bottom half of the root zone.
If you need to drain excess water right out of soggy soil in a pot, set some thick, absorbent cloth like cotton flannel, an old Tee shirt, facecloth, or cotton socks right under the drain hole so that it touches the soil mix through the drain hole. The pot should not press too tightly on the saucer, pinching the cloth. (Chopsticks or shims are great. I think three quarters in a triangle might give enough clearance. Four bottle caps in a square?).
Then trail the cloth DOWNwards (maybe putting the pot up on a table or some bricks so the cloth can hang down. Now it will wick most of the water out of the potting mix and down onto your patio, since gravity AND capillary action can overcome the capillary attraction of the mix itself. (You could catch the drippings with another saucer or plastic dropcloth, but it might also evaporate from the cloth.)
Once you pull the water out, air can get in, and roots can resume breathing instead of drowning. This "wick" can also help you to slowly flush a pot that doesn't really drain well enough to flush easily.
