If I may:
ROM--never aggressive. Not fast. Always watch the PALS eyes when moving her limbs.
SWIMMING POOL LIFTS--less expensive than you might think. Ask your regional YMCA board of directors to install an ADA-compliant pool lift that will meet your needs now and in the future.
SPECIAL TO MARIELAURE--I know this is difficult, but...I have a policy that whatever the PALS wants, the PALS gets, with smiles. In my way of thinking, ALS takes away a person's choices. A PALS can't even choose to scratch an itch! Plus, he's a adult making his final decisions. For those reasons, I let my PALS have anything, anytime, no matter if I disagreed, no matter if it was bad for them.
The way I figured it was: If I were in my last days and somebody second-guessed my decisions, I would be totally pi$$ed, especially knowing that there's not a lot I could do to assert myself as a PALS.
Others will disagree. Your mileage may vary.