They don't make enough money to pay someone to manage their books.. I know this because a lot of them around me couldn't get a legit PPP because of improper book keeping.
Some take that as a clear sign that the area is unprofitable, but you could take it as a sign that there's money in the field and the efforts need to be organized. Usually small business people are only good at doing the work, but usually bad at the running the business. The same can be said for a lot of tradesmen as well.
Set up a payment plan, take ownership in the business - there are all sorts of angles to take even when she doesn't have cash money to pay.
You could even start a Black Woman's Entrepreneur Club at the local church or community center.
This is only if you're interested in nation building though. If this is a dunk on Black Women post, then forget everything I said.