This guy gets it.
It’s even going to be hard to hide any financial moves if he started making them right now. Family courts will find out everything in discovery, where he will have to expose all of his finances. 10 years is considered a long term marriage, and she will get half his shit and he will be paying alimony for 5 years but not forever as long as he doesn’t take a shitty deal to settle. I know guys who agreed to pay alimony forever like dumasses just to settle. Yes he can most certainly win joint custody. I was married 21 years and was awarded primary custody of my daughter. I negotiated to pay only 5 years of alimony in the divorce and my idiot ex took the deal. Remember that about anything can be negotiated but she will likely not agree to anything that fucks her over.
Again, this is why we don’t get married guys!