You did it! We figured this one out! It is a truth universally acknowledged (by me for certain) that the Bitchery pretty much knows everything, and really, it's true. Scroll down to see the solution for this HaBO - and many thanks!

This HaBO is for Amanda, who read a paranormal romance sample, and is hoping to find the rest of the book:
I had downloaded a kindle sample of a contempory vampire romance/urban fantasy ages ago, and all I can remember is the following tidbit. I’ve since gone through hundreds of book samples of vampire romances in search of the vase-and-vampire book, but haven’t come across it again.
The sample introduced us to the heroine who is the new house keeper/cleaner/carer/I-can’t-really-remember for a mysterious, mostly bedbound woman. Anyway she has just managed to smash a Ming vase whilst cleaning and is panicking over being fired and having to pay for the vase, when the hero strolls into the house as though he owns it. The hero notices the empty space where the vase used to sit and questions the heroine over it, whilst she squats [totally naturally I’m sure] over the remains of the vase as she tries to hide it from his view.
She is saved from further embarrassing herself by a bang and what feels like an earthquake, which prompts the hero to rush upstairs. Remembering that her sickly employer is upstairs and that she maybe, just maybe, needs help, our Ming assassin follows the hero. Once upstairs she witnesses a shadow/smoke monster [maybe I’m mixing up books here] kill someone and the hero drags her away to a hotel somewhere before she is killed too…
Sorry that my description isn’t the best, but this is a partly forgotton niggle in the back of my head. Can someone please help?
The squatting over the vase part made me laugh. Squatting heroine over a broken vase would make for some interesting cover art. Do you recognize this book?

When Darkness Comes, by Alexandra Ivy?
That opening sounds a bit like Ouran High School Host Club. Break a vase, have to pay for it… But the rest doesn’t. 🙂
I actually know this one! It is, indeed, When Darkness Comes by Alexandry Ivy.
Thanks for steering me in the right direction – I’m invested in the vase’s story 🙂
That is definitely When Darkness Comes, the first book in the Guardians of Eternity series by Alexandra Ivy.
I thought the same thing! I love that manga/anime!
I am seconding, thirsting, and fourthing that it is Alexandra Ivy’s When Darkness Comes. It’s the first book in a series that has become a favorite and has never strayed from it’s original premise: there are VAMPIRES, ya’ll, and they are smexy and hot and the like smexy hot sex. And there are prophecies of doom and gargoyles and werewolves and fairies and stuff. This series doesn’t try to be anything other than an entertaining well plotted saga of the varied creatures trying to live and snark together. The eleventh book in the series, Hunt the Darkness, is unexpectedly my favorite, but they are all enjoyable reads. Lotta humor, lotta mystical magical superboning, ya know…the usual, just more fun than a lot of what’s out there.
Wow, I might have to download that, too. Thanks!
Omg, now I have 11+ more books to read thanks to this post.