Impressive investment strategy you've been pulling off! 

Continuously educate yourself about real estate and investment strategies.

Do you have any specific criteria or strategies that you find particularly effective? 

Your father-in-law will want to minimize his tax liability on the capital gain and think about how the sale fits into his estate planning strategy.

If you're ever looking to chat more about investing strategies, or need any advice as you start your journey, feel free to reach out.My plan is to kick off my investing journey this year with my first live-in flip.

I have a separate positive review of this individual on BP.We spent a great deal of time formulating a strategy.

Quote from @Benjamin Blunt: What are the best strategies or tools that you use to find Off-Market Properties?

You could see an attorney or even better talk about it with your financial planner many have legal tech now that makes it essentially frictionless to get your estate work done and keep it updated.  

Has anyone used the company BNB Leverage to help with the airbnb arbitrage strategy?

Here are a few strategies that might help:- Leverage Industry Benchmarks: Many investors use a percentage of gross rental income as a quick estimate for operating expenses.