This particular effect has come up for discussion on the boards a few times as a good way to make money, and it seems solid. But how would you go about doing it to maximize profits, minimize risks and costs in the set up?
Here's the breakdown of the scheme. In a town or other suitable population center, you take a room or a whole building even, and use magic to give at least one room a healing bonus of say +9 to disease and probably a second effect to give +9 to effect injuries. These can be higher if you want (and that might be important for the economy of he effect). From there you charge for the use of the room, the sick or injured convalescing in the room until healed, the room would ideally be managed by grogs or intermediaries to limit the magi's involvement. That's the basics of the scheme and ideally would make decent money if there are noble or merchant families nearby or even just townfolk that are employed.
Now then, that's the basics, but there can be obvious flaws, drawback and stories that come up for this scheme. To try and minimize these, how would you go about it?
For example, you might enchant an item of a religious nature, or claim it is a relic. This would likely spread word fast and far, but also open risk of the church getting involved and possibly the item being stolen by others (or the Church).
So starting with the source of the enchantment (let's assume the sigil is negligible), how would you produce the effect? (some possible ideas)
A circle or ring (can't be stolen then, and can be hidden or concealed)
A large piece of furniture (bed, reducing range to Touch instead of Room)
A small item, unrelated to the item that is claimed to heal them (a floor tile while there is a nonmagical statue of a saint with candles on a shelf for example)
A charged item to save on vis (and also puts the idea of scarcity on the healing, potentially making it more valuable. Potions and poultices might not attract much attention either, but will likely go against the limit of selling items in a year)
Sneak a magus in to cast a spell of Moon duration and target Room (no item to lose and the magi can just cut their losses and run if things go bad)
Enchant an item that looks like it has healing significance (you get what you pay for)
Then the scheme.
Have a grog or non-affiliated mundane run the room or building as a hospital or maybe a pharmacy if using potions.
Have it located on the covenant grounds and run by covenfolk or possibly even one of the magi
Have it located far away from the Covenant to cut off as much association to the covenant and use magical or nonmagical means to collect the funds
From there what about the story and method? You’d need some consistency for what people are being told, otherwise it could fall apart. Does the one running it tell them it’s based off of philosophical and natural means (humours for example) or do you go with a religious or mysterious explanation. Any and all explanations can potentially arouse unwanted suspicion and attention, I guess the goal would be to minimize it.
So how do you think you might go about it?