Elizabeth Moon writes a good book and they most often include a strong female protagonist. This story reads well and stands alone well in spite of it being a follow-up to a series.  The characters are familiar if you read the series but it doesn't matter if you haven't it as it works very well as a standalone story.

Ky Vatta is the heroine and she and her fiancé hope to buy a ship a blithely sail through the Galaxy in a Star Trek kind of way.   However, responsibilities prevent that from occurring.

Ky returns home to find that family enemies are once again pursuing their vendetta.  Ky’s families enemies have infiltrated both the military and business community.

Their vendetta has reached out to incarcerate the former staff and personnel of Ky when she was an admiral.  Ky’s responsibility for people under her command literally forces her into making an attempt to rescue them.

Moon provides a lot of details and excellent character studies and you also find a lot of action this book was enjoyable and I recommended.