First of all

--listen carefully to this--a detailed inspection report with photos stored onchain

In the name of Kronk why would you do this? Why? What benefit is there to putting the photos on the blockchain?

https://static.wikia.nocookie.net/vsbattles/images/b/b1/Kronk2.0.png

Secondly

Covenants could automate Long-Term Rentals

Covenants ensure that an address can only send its contents to a set of whitelisted destinations, and in this case it seems like you want the whitelist to consist of (1) the landlord or (2) the tenant, where the choice ultimately comes down to (a) their agreement or (b) a stacker news poll.

Option (a) requires a 2 of 2 multisig, and that seems to eliminate any role for covenants. Bitcoin's multisig technology already lets two parties create an address together, agree on a set of destinations, and not let the money go anywhere else, simply by not signing to send the money anywhere else. Covenants let you do this without the action of a second party, but since your scheme requires two parties anyway, I don't think covenants add anything.

Covenants also don't help you achieve (b) which is the really hard part. Bitcoin doesn't know stacker news exists and has no built in way of responding to its polls. You could perhaps achieve something kind of similar by having the 50 most active stacker news contributors put their pubkeys in a big multisig script and require 26 signers to approve any movement of funds using that script. If every loan added that script to the lease contract, you could let those 50 people vote if the landlord and the tenant have a dispute.

But (1) this idea does not require covenants anywhere (2) it's not the same as using a *real* stacker news poll (3) I don't see how covenants can enable the latter.

Lastly

Your post uses the term "trust" throughout it and talks about how to "cultivate trust" by letting Stackers vote on stuff. It ends by calling this "trustless communities [with] SN as facilitator." This is entirely self contradictory. If you're trusting Stackers to vote honestly then your scheme is the very opposite of trustless. "Trustless" means "you don't have to trust anyone." What you're describing is literally "trusting many people" and you even say so. Please don't call things trustless after spending such a long time describing, explicitly, the opposite of trustless.