She's not party to this case, and it's a civil trial so there isn't jail time. Unless she's caught perjuring herself like her brothers. And even that won't likely affect any of them.
I'm not a photographer but they all will say you're going to want to start with a 50mm prime. Every system has one that's high quality and relatively inexpensive. You should learn on it. Get to understand shooting, framing, lighting, etc without the crutch of a zoom lens.
It's quite hard to beat the latest Crinacle collaborations if you want a neutral/natural sound.
7hz Zero 2 https://www.audiosciencereview.com/forum/index.php?threads/7hz-x-crinacle-zero-2-iem-review.50534/
TruthEar Zero Red https://www.audiosciencereview.com/forum/index.php?threads/truthear-x-crinacle-zero-red-iem-review.44865/
I own the Zero Red and they are quite good to my ear.