I wonder how they are structuring these ? 

* The offices don't have windows as the building has adjacent structures.

Start by deepening your understanding of CRE fundamentals, including net operating income (NOI), cap rates, and lease structures like triple net (NNN).

But why would that make them want to use this financing method?

We develop and consult new developers through the full cycle of development.Financing differs from project to project based on your equity, land cost, construction methods, etc.

Not the most scalable method, but I like the benefits it affords me while I am still a smaller operation.Completing 500 builds in just over 10 years is impressive for someone who just sorta fell into it.

When it comes to real estate, here's a general list of eligible assets and their depreciable lifespans that you should know: Residential Rental Property = 27.5 yearsThis includes any building or structure where 80% or more of its gross rental income is from residential units.That means:- Apartment buildings- Single-family rental homes- Duplexes, triplexes, and quadplexes- Mobile homes (used for residential rental)- Any kind of residential lodging facility where the primary purpose is long-term rentalCommercial Property = 39 yearsThis includes non-residential properties like:-Office buildings-Retail stores and shopping centers-Warehouses-Industrial complexes-Hotels and motels that do not qualify as residential rental propertyLand Improvements = 15 yearsThese include sidewalks, roads, fencing, some landscaping, and parking lots that are separate from the building.Personal Property = 5 or 7 yearsPersonal property used in a rental activity usually has a 5 or 7-year life.This includes most furniture, appliances, carpeting and various machinery.Qualified Improvement Property (QIP) = 15 yearsGenerally, this includes any improvements made to the interior of a non-residential building after the building was placed in service, excluding elevators, enlargements, and the internal structural framework.Computers and Related Peripheral Equipment = 5 yearsVehicles = 5 yearsNote that the land itself is not depreciable.

I would like to get a structure for fix and flipping in 2025 so that I can do it in my free time. 

@Bob Asad I like the individual sub account method escrow account, but there are multiple different ways to hold security deposits and multiple laws in different states.

Higher risk structures can achieve higher IRRs, but can also break even or even lose money.