
Limsa has the hardest stance against slavery in the form of the Dutiful Sisters of the Edelweiss, who usually outright kill slavers if they find them. It's the "finding them" part that usually thwarts them, though - along with "isolating them successfully from their networks because we can't actually fight an entire pirate fleet on our own and the Maelstrom's support for our operation is shaky even though we've been in this city longer than them".
Ul'dah seems to look the other way. The basic principle Ul'dah operates on is that if you have enough coin, almost anything is legal. There's nothing in place to stop very rich business-owners from owning or trading slaves.
As per others' reply I think indentured work is a norm, both in Ul'dah and elsewhere. Rowena's House of Splendors is operated entirely based on it (she pays off women's debts to third parties, and in exchange, the women become indentured workers for her - the idea being it's a better life for them than being chased by debt collectors, and she gets to profit off their work in the mean time. You can spot these women in Revenant's Toll / Idyllshire because their names all end in -na, as per Rowena's rules).
It's unlikely anyone - even actual slaves in Ul'dah - would be branded or in chains because, as mentioned, slavery is illegal and any operation has to have a cover story for if it's discovered. Oh, you think this maid is here as a slave? Oh no, she's just a friend here as a favour! You think these men are working in my mine without pay? No no, I'm sending it home to their families! A brand or chain would give away these excuses in a heartbeat; they want lies that can be covered up with forged paperwork, under-duress consent statements, and bribery of officials.
Outside Eorzea, however, it's important to note that these rules may not apply. If you're asking for a character's backstory, you may wish to leave the continent that they originated from as vague as possible - I'm sure these practices could exist somewhere on Hydaelyn, we just don't know where.
Ul'dah seems to look the other way. The basic principle Ul'dah operates on is that if you have enough coin, almost anything is legal. There's nothing in place to stop very rich business-owners from owning or trading slaves.
As per others' reply I think indentured work is a norm, both in Ul'dah and elsewhere. Rowena's House of Splendors is operated entirely based on it (she pays off women's debts to third parties, and in exchange, the women become indentured workers for her - the idea being it's a better life for them than being chased by debt collectors, and she gets to profit off their work in the mean time. You can spot these women in Revenant's Toll / Idyllshire because their names all end in -na, as per Rowena's rules).
It's unlikely anyone - even actual slaves in Ul'dah - would be branded or in chains because, as mentioned, slavery is illegal and any operation has to have a cover story for if it's discovered. Oh, you think this maid is here as a slave? Oh no, she's just a friend here as a favour! You think these men are working in my mine without pay? No no, I'm sending it home to their families! A brand or chain would give away these excuses in a heartbeat; they want lies that can be covered up with forged paperwork, under-duress consent statements, and bribery of officials.
Outside Eorzea, however, it's important to note that these rules may not apply. If you're asking for a character's backstory, you may wish to leave the continent that they originated from as vague as possible - I'm sure these practices could exist somewhere on Hydaelyn, we just don't know where.