It's best if you watch the video. Ms Rodriguez explains when they hired him and it was before trial.Then my assumption is that this guy specifically was not hired until after OS's. I bet the defense asks about that tomorrow.
But I also assume the prosecution will have more than just this one then as well. He was solely looking at Chase's. They should also have one that looked at Joseph's, no?
fyi ... the accountant discussed in this motion, is also the one that testified today.
As regards your fyi - we are discussing the one who testified today.