I hope you reconsider and learn what is expected from those who deal in RE in conducting yourself ethically, legally and professionally and do so.

Infectious disease MD says no Malaria there, Zeka is no problem for me but take plenty of Deet because Denghai is common (and no cure or immunity yet for it yet:-(The Conference for next week has been cancelled, JetBlue cancelled all my flights, no rooms available at the hotels and my contacts say, Do not come down here now:-(So I'll continue to upgrade my rentals with improvements my Tenants want and will pay more for and my days in PR will come!

This can help reduce your current tax liability and increase cash flow, which aligns with your aggressive investment strategy.Faster ROI: By capturing bonus depreciation through a cost segregation study, you can potentially recover a significant portion of your investment costs sooner, putting that money to work for additional investments sooner than waiting for traditional depreciation schedules.Alignment with Investment Goals: Given your goal of transitioning to real estate professional status and reducing W-2 income within five years, using cost segregation to create losses that offset other income could potentially accelerate your progress toward this goal.Arguments Against Cost Segregation Study:Initial Costs: Cost segregation studies typically involve upfront costs, including hiring a qualified professional to conduct the study.

You're starting off on the right path by conducting research.

If they refuse, you might want to walk, or, if the property is an amazing deal - which I doubt based on the conduct of the Vendor - speak with your attorney about whether you have sufficient grounds under the contract to either force them to comply or be made whole for their failure to execute their obligations.

Typically, as a sponsor, you will negotiate enough time to conduct due diligence on a property with a seller that they need in order to be able to place debt on the deal.  

How many times could you possibly need access to the property in order to conduct due diligence?  

The proof is not in their contract....the proof is in their conduct. 

Guess that is a nice thing about RE, you can conduct your business however you want as long as its profitable and meets your expectations.

Any sale should be for near market value and conducted by a realtor.