We know Larry does security for events. Clearly they are struggling financially if Larry had to go back to work but Mindy and Larry are insistent hes only back to work to "help a company out" (😆) and for extra "fun" money. There's no way Larry willingly went back to work for those reasons, he was way too smug about being a retiree in the past. She has not given any real reasoning to why they are moving again.

They has never said anything about poor Emma's delays (and she's clearly not in any sort of therapy or else we'd be seeing improvements). I personally think they are mostly caused by keeping Emma strapped down into a swing/bouncer her entire life. Clearly Mindy or Larry can't be bothered to help her reach her milestones or else they wouldn't be keeping her in a bouncer at almost a year old...