Mary Jo Putney's "One Perfect Rose" - #7 in the Fallen Angels series

The first part of the book, up to the marriage, is excellent, other than the somewhat silly subplot about the brother running all over the country looking for the hero.
After that it becomes rather laboured and the cliches come fast and thick. The bits about the near-death experiences are almost unreadable. This is only the second book by Mary Jo Putney I've read and *both* of them have lost heiresses! What's up with that, especially when the heiress aspect doesn't add anything to either book?