Female protagonist chameleon demon who is a hitman/assassin. Trying to earn enough money to get out of a betrothal

[Reader]

What I can remember;
The chameleon community had been in hiding for centuries as they were being hunted
The main character had to use a “mask” her family/her created to change there appearance to another type of being .
Her mother was always threatening to disown her and telling her she would never see her brothers and father
Main character was making money by accepting hits
She was able to teleport
Teleported to he home Lamont in the pool
Lucifer and the “7” were part of the story and she ended up working for him.
He best friend had snakes for hair
Female chameleons were going missing and she found some of them in cages
She could shadow walk
The love interest was a chameleon male who is often disguised as a vampire
She was trying to get enough money to be able to pay to get out of her betrothal. She had been able to put the marriage off for 100 years and the time was almost over
She regularly found her betrothed having see with others.