What is a legitimate plat business I could start

[Lhancelot]

Create a RP guild of ERPers. Fees would be whatever you determined!

You could begin by offering ERP in the alley's of FP, starting out as a fledgling pimp. Once you got more members, you then could start setting up your brothel in Freeport.

Once you establish yourself as the King Pimp of Freeport you could begin to branch out and set up "shop" in Neriak, with a string of dark elven beauties.

Next, Qeynos and Felwithe, where you could showcase the wood elf and high elf lovelies.

Although this might make these otherwise non-populated zones populated again, it might be easier to just have one Brothel set up, and require that your guild members relocate from their original cities of birth and work in Freeport to keep things simple for your guild members and the customers who want to enjoy RPing/ERPing all in one spot.