There isn't an updated version of Family Lawyer Deluxe because the product appears to be discontinued. You can still find the software on Amazon or eBay websites, but that's pretty much about it. To make it work in Windows 10, a virtual machine needs to be created with Windows XP. To do this, take advantage of the software called VirtualBox and its tutorial to create your own machine.
Note: An original Windows XP Installation disc is necessary.