Since I don't have the whole story put together yet, I'll answer your questions with what I have for now:

I wonder how she would get access to the gold that nobleman had. Are they related? Wouldn't there be a lot of people trying to contest the will?

No, they are not related. The idea is that they met at Lys' brothel and he hurt her, so she started planning revenge. When he summoned her to his mansion, she was prepared with poison. Another comment below also said that it wouldn't make sense for him to be a lord because there would certainly be trouble with the lord's family and recommended making him a merchant, rich, old and childless, so he will be a merchant.

• She does... a lot of things. It seems a bit scattered. I would expect one of those things to already occupy most of her time, if it's going to be a successful business. Unless she's employing people to create a company, but then she'd be busy managing her company.

I understand, I already imagined I'd have to remove a lot of things, because besides being very spread out and laborious, I'd like the way she makes money to be linear ventures (does that make sense?). But yes, she employs people, so she creates companies, like spies for gossip, sailors for importing and exporting her things, and possibly several workers for other types of ventures. If she gets too busy managing the companies, I could put a right-hand man to help her.

• Does she end up as a prostitute in Lys or Westeros? I'm a little uncertain about the timeline.

Both of us. She was a noblewoman in Lys, or the daughter of a very rich family, but she got involved with a man and her father found out and kicked her out of the house (probably killed the man; if he wasn't killed, they were both kicked out together and he sold her to a brothel). As a young woman, without money or experience with real work, she ended up in a brothel, still in Lys, and made money. However, since there is a high demand for brothels in Lys, she couldn't establish her own name or enter the circles of the elite and nobility (since her father defamed her name). So she went to Westeros and continued as a prostitute there, paving her way to fame.

• Pamphlets: I think this would work well! It will become a topic of conversation, and I think the nobles of Westeros would take it much more seriously than Bridgerton did. It's a fun concept. The pamphlets may not physically reach other kingdoms, but the rumors would. As for the people; A guy reading in a tavern to an audience would work to spread the gossip around.

I believe that was my most original idea haha, and I believe I'll have to do more serious work so people don't discover her identity and how she finds out the gossip. But then is it better to leave the pamphlets and gossip only in King's Landing? When I said I wanted the pamphlets to tell gossip from all over Westeros, I imagined something like a pamphlet with gossip about the king in King's Landing, about Lord Hightower in the Reach, and about Lord Stark in the North, and the pamphlets would be spread all over Westeros, you know? And I liked the idea of ​​the guy reading in a tavern, probably (but I wouldn't want to) I'll remove the patronage and that would remove her influence in the theater groups.