Reach out to a lender to confirm. 

We have gotten spreadsheets with 'rent rolls' and 'expenses' in the past but haven't seen any legit documents (bills, bank statements, etc) to confirm all this.

Well, this morning I got a call from my realtor and received an email that confirmed I was indeed the highest bidder and that my bid was accepted.

I got email confirmation from my lender that this will not invoke due on sale clause Am looking to form individual LLCs for each of my investment propertiesAre there any gotchas that i need to be aware of?

You would just need an appraisal release letter from your current lender and confirmation from the new lender that the appraisal is acceptable, per their requirements. 

@John Underwood Did he confirm where he got that info? 

What's the best software to use to find leads?

@Uri E. the first thing to do is to reach out to your CPA for confirmation if this will work best for your situation. 

My question is: what software would be best for this type of operation?

I'm looking for something like AirDNA but for properties/areas of town that will let me analyze what areas/neighborhoods in town historically hold their value and recover their value the quickest after a downturn. Is ...