Marketing from her account
I understand that in the context of gifting items, which are brand-made. I have worked for a very large brand in the past where we would gift product to an influencer in exchange for a specific post.
But I have never heard of a brand gifting land, or a construction build or something completely unrelated to their primary business to an influencer. We would never have done that even with the A-list celebrities we worked with. It was either product or being remunerated for doing a campaign or being the face of the brand.
If you look at her socials she is only actively promoting where the items came from. That type of post doesn't guarantee more than a free item.
I don't doubt she might have earned the revenue doing advertising from brands, but that would be her own money, plus whatever she has been gifted for the house.