Hired

In the run-up to Christmas, Elijah Vanaldi discovers he is guardian to his small, orphaned nephew. But the playboy billionaire's reputation makes some people question his ability to be a father. Elijah must fight to protect the child…and he'll do anything it takes! Ainslie Farrell is jobless, homeless and desperate. When Elijah offers her a position in his household, she simply can't say no….But the ruthless Italian wants more than nine to five—he's demanding marriage!

Well done, my least favorite trope: plot moppets.

Kid was spoiled, h behaved like a yo-yo and H was understandably a mess,

But kudos to the author for making all that into a great (if somewhat depressing) Christmas story