Some want a real villa and they want it tailor-made so their only option is to have the villa built for them.

Like you, i'd be interested if anyone here has any experience with doing this 'technique'. 

- How can I best estimate a breakeven point, and what techniques help maintain positive cash flow through all stages?

For inspiration, you can check out sites like Slidebean, PitchDeckHunt, or Canva (I use this personally), which have sample pitch decks and templates tailored for different industries.

Most importantly you can refine your phone technique at a low cost.

@Kim A. would say that a great thing any flipper can do is develop their own off-market seller marketing techniques.

On the crypto what insider info or technique as an investment strategy was marketed.  

This is even true for student debt.I recommend the old-school, proven technique of paying off all debt.

The key is to find someone who specializes in real estate, as they’ll have the specific knowledge that applies to your investments and can provide tailored advice.Even better, if you can work with an EA or CPA who actually invests in real estate themselves, that can be a huge plus.

Consulting with a financial advisor or real estate mentor can also provide tailored guidance for your specific circumstances.