You'll need to pull a bunch of cables through walls. Some of these will be 4-core. I can say with great confidence it's illegal to do this without landlord permission.
This is simplicity itself. They make smart switches which work with wireless remote switches that run on batteries, have no wires, and simply stick to the wall. You need to reconnoiter which wires are present in the old switch box to aid in product selection.
- Get facilities/landlord permission to replace a switch. It's unlikely they'd object.
- Install such a brand of smart switch in the old/former switch location.
- Install 2 remotes and pair them to the smart switch.
The key to finding masters and remotes that work with each other is they will almost certainly be the same brand.
Further, you should be aware that anything from the following channels is all but guaranteed to be the unsafe, illegal junkstream of poorly made goods from Alibaba: a) AliExpress, b) eBay, c) DealExpress, d) Banggood, and e) Amazon Marketplace (pretty much anything on Amazon, sadly). So you can save a lot of time/confusion by avoiding these channels altogether.
Honestly your best bet is your local home improvement retailer's web site (e.g. Wickes or Menards), or actually walk in to your local lighting supply house or electrical supply. They will seem very expensive because they sell a higher quality product that is properly safety certified, and they charge a higher markup than mail order, but they don't charge shipping. It is worth paying them for their knowledge if your time is valuable. Having a good relationship with an electrical supply house is invaluable when doing projects, because they will save you a fortune by steering you away from expensive mistakes.