A Witch Among Villians

Prolouge

At a mansion, a certain girl was going through her mail, mostly marriage proposals, which she threw into the fire, and letters of inheritance leaving their wealth to her. 

This girl was Hazel Genevieve Potter, Girl-Who-Lived, Woman-Who-Conquered, and so on.

It didn't even help that she was the most powerful witch that ever lived now, and ever since the war, Hazel felt listless. People, mostly reminates of the Dark Lord's army wanting to get 'revenge', except for the Malfoys and Burkes the latter who knew better than to tangle with the 'strongest witch', and they end up losing to her and lost everything to her.

Then again, she had too many family titles and wealth than she knew what to do with it.

Those were Avery, Carrow, Flint, Bulstrode, Parkinson, Selwyn, Nott, Travers, and Yaxley who were all foolish enough to try to become Dark Lords and overthrow the savior of the Wizarding World, but she let them keep their lives rather than letting them die and they were taken to Azkaban.

And when she won against Voldemort for good, she also gained access to the Gaunt, Slytherin, Cadimus' vault, and Riddle, even though the latter was a muggle family. These on top of her triumph against Quierrel and Lockheart in her first and second years.

In addition some like Slughorn, Flamel, Sr. Crotch and even Dumbledore himself before he died, willed all their fortunes to her since they had no heirs or all their offspring died in the Second War.

So in summary from what she got in wealth:

Avery: 587,000,000 Galleons

Carrow: 420,000,000 

Flint: 360,000,000

Bulstrode: 354,000,000

Parkinson: 780,000,000

Selwyn: 239,000,000

Nott: 485,000,000

Travers: 471,000,000

Yaxley: 654,000,000

Slughorn: 11,875,000,000

Flamel: 800,000,000,000,000

Crouch: 721,653,000,000

Dumbledore: 570,000,000,000

Slytherin: 40,000,000,000

Gaunt: 376,000,000,000

Cadimus Vault: 5,300,000,000

Riddle: 44,986,500 British Pounds

Quierrel: 55,000,000

Lockheart: 70,000,000

On top of that, Hazel also found more of her heritage being not only a Potter, Black from her godfather and Peverell, she was also somehow a Gryffindor, and Pendragon on her dad's side, and a Ravenclaw, Hufflepuff, and LeFay on her mom's side. It was a mystery how, but the goblins believed that Lily's family once had magic centuries ago, had somehow vanished, and came back with Lily.

Finally, according to the Right of Magical Inheritance, Hazel also got Merlin Emry's wealth.

Potter: 670,000,000 Galleons

Black: 893,000,000

Peverell: 600,000,000,000

Anitoch vault: 32,000,000,000

Ignotius vault: 67,000,000,000

Gryffindor: 424,000,000,000

Pendragon: 972,000,000,000

Ravenclaw: 315,000,000,000

Hufflepuff: 308,000,000,000

LeFay: 11,732,300,000,000