@Miss Prim, it's good to hear from you again! Welcome back!
We did something similar a couple years ago. My Bonus Kid is on the spectrum. He has a good job, and we wanted him to fly from our nest. We paid cash* for a condo, and put it in all of our names. We rehabbed it and turned it over to him turnkey. He pays the taxes, insurance, HOA, and utilities. We know he will never move out, as it's very convenient to his work. Eventually, he will inherit the whole thing, but for now we'll stay on title so that his dad or I can be on the HOA Board. We knew the reserves were underfunded when we bought it. We want to shephard it along to ensure that changes, and BK doesn't have the bandwidth. Currently, his dad's the Treasurer, and things are slowly improving.
I, too, sought advice here. The one that resonated the most was the person who said its better to give with a warm hand than a cold one. We did, and we're very happy with our decision.
*We were swimming in cash from a (legal) side hustle, so the question of what to liquidate wasn't an issue for us.