My only gut impressions is the first seems rather nonchalant, which is sort of strange when entering a presumably expensive contract. The longer response just feels very boilerplate to the point where I'd question if its not the opening to a blanket scam message.
I guess an important takeaway is that everyone perceives interactions in different ways and that's really why this whole thing is relevant.
Sadly, I don't think that will be the majority of the use.
Also, if this were the target use case, the use case could be adapted to the larger problem of tutoring/coaching feedback, to help the person learn and improve, not "write my essay for me, I don't much care what it says, just make me look smart".
The people I know in real estate are not reading Hemingway on the weekend and appreciate fine writing. They are blue collar guys with good business sense and good at fixing housing.
The writing style of the tenant matters to them zero.
"You can write a proper restaurant review for Benu or Birdsong along with writing a good inquiry into getting that apartment in Presidio Heights you always wanted"
The AI version of the text is overly formal and verbose, making it clear that the writer does not wish to reveal their level of education. I think that's the reason people might be interested in this.