For me, the reports available in Baselane are ideal, but I'm also not trying to run a different business through it like it sounds like you may be doing.

@Asher M.Possible, yes but like your lender pointed out it's going to be difficult to pass the self-sufficiency test (SST) for a legal 3-4 unit property.

I have seen services like Likely.ai, PropertyRadar, PropStream etc.I'm also open to coding via Python based on publicly available APIs. 

While I'm thinking about it, there used to be a specific meetup in Greenville called the Greenville Equity Marketing Exchange or something like that.

If you like to be risky with your capital maybe try putting it in some index funds, crypto, or stocks that you believe in and understand and then take it out when its made a good return and then use it for the downpayment.  

It’s the simplest way to get a feel of what it is like to be a landlord without going through the hassle of managing rehab projects.

This is the first time I have done something like this, where it was for other reasons besides not paying rent. 

Commercial liability will only cover liabilities like lawsuits right?

 try one of those online sources like prosper etc. 

Let me know if you'd like to meet up and I can give you my free advice no strings attached.