So my question is, where can I find analysis tools or spreadsheets that I can use to work out the numbers and put together a formal/semi-official/convincing package to present to the prospective investors?  

If an handy man cant open a toilet box he need to hang his tools up.Have you ever installed a toilet? 

As many investors are aware, a cost segregation study is a very beneficial tax planning tool that can create a very quick ROI.

Does bigger pockets have the tools for me to find investors for when If when I land a deal?

It's a ten-minute job if you have the tools and parts.

Hey everyone- a friend of mine is looking for feedback/beta users for a tool that calculates the long term cost of any property you're evaluating in minutes. 

Thanks, care to share what tools did you use?

We have a detailed BRRRR cash flow calculator tool we share with our clients to help assess these types of projects.

@Arthur Neves, the risk on Tax Liens is almost null if you do good due diligence.The pain in the *** is doing the research which takes a lot of time, this is the reason we developed a tool to help us 😜

It is not a tool to tap funds for a single flip.