Landlords: Rental Stream Financing?

[L Craig]

To all you larger landlords and apartment building managers:

Is anyone aware of a financial services provider that will "purchase" your future rental cash flows at the beginning of a lease? I would imagine this would be done at a discount, but would afford you the predictability of getting paid a year's rent at the signing of a one-year lease. As the tenant pays monthly rent, it would be passed on to the purchaser of the rental stream.

Does such a service exist? If not, is there a market for one?