Question about real estate development

[Genesis Pacheco]

So im currently learning about becoming a real estate investor and I was watching this show called "The deed", where this women bought a land and started building her development of houses. Now my question is she owes the bank a loan for the land and a loan to start building. Once the houses are sold she obviously profits and pays back the loan. So is that the only time she profits, is when the house is sold and that's it? Or does she get some type of assets for the house being on the land she built the development on?