British author Joanna Trollope is not as well-known in the US as she is in the UK, but I think as more readers discover her work, she'll gain more prominence here, as well she should.
Trollope, the author of about 10 or so previous novels, does not write "chick-lit". The characters in her books - all stand-alones - are extremely well drawn and the plots are not the simple, simpering plots of the average "chick-lit" novels. Trollope writes about families, in general; families that are facing troubled times, either by financial problems or interpersonal relationship problems. The women are not "beautiful", or "brilliant" or any of those empty adjectives used in most works of fiction to tiresomely describe any female. The men are not "handsome", "brilliant", or "fabulously wealthy", either. Joanna Trollope writes about families in England - usually middle class - who have many of the same problems as the rest of us have.
In "Daughters-In-Law" we find Rachel and Anthony, who have raised three sons, all now in their 20's and 30's, and all married off. Rachel - definitely a "mother-in-charge" of her sons, has found it difficult to relinquish the leadership role to the next generation. However, the two older daughters-in-law are, for the most part,content to keep the family dynamics pretty well the same. It is the addition of the youngest son's bride to the family that has added tension and stirred up problems the older two daughters-in-law have pretty well attended to. One of Trollope's great gifts as a writer is to make the secondary characters as interesting in their own rights as the main characters. We want to know what happens because we find all the characters "interesting". (That doesn't mean that an author only should write about "likable" characters; Tova Reich is a master of writing about interesting but venal characters, and her books are always interesting!)
Trollope looks at the interfering-mother-in-law problem from all angles. Grandparents, children, and grandchildren are all viewed in terms of causes or fallout from this problematical woman and her life and family going forward. Joanna Trollope has written a masterful look at the modern family.