Specifically, I’m looking for insights on cost projections, especially whether the cost per square foot tends to decrease with larger projects, and what budget I should allocate to ensure this development is profitable.Guidance from someone with experience in similar projects would be invaluable

And if the tenant doesn't know that NNNs can vary widely, and therefore not budgeting for a big reconciliation bill (if something happened that caused you to under escrow), then they may not be able to pay anyways.

Another lesson I learned was to have a more concrete scope of work to help create a more accurate budget and to add a buffer in the plan for things that come up that are unexpected.

But we never had a shiny truck show up with people in monogrammed shirts.  

In the current housing market, many of us have experienced rent increases of over 10%, making it challenging to budget and plan for the future.

@Ted DavisSmall landlords can use property management software like Avail, RentRedi, Stessa, SmartMove, Zillow Rental Manager, Zelle, PayPal, Venmo, Google Forms/Sheets, Thumbtack, DocuSign, HelloSign, QuickBooks, Mint, and Google Voice to manage rental properties, manage rent, and track income, expenses, and budgets.

Unfortunately, I'm not allowed to attend any seminars or classes (due to budgeting issues), and I can't study for a real estate agent liscense and join a club until I'm 18.

I almost had my truck repossessed, ruined my personal credit for years, and the deal source was one of my closest friends.

Work hard and be niceIgnorance is the consequence of knowing everything (I just made that up)Contractors have more funerals, weddings and broken trucks than any other demographic on the planetDon't be sleazy (I just made this up, as well)

Get to know your lenders, be aware of your spending, and perhaps budget a little extra for unforeseen expenses—trust me, they will arise.Location is everything, and this isn't just a platitude.