Do you think they're worth the investment, or do most buyers still prefer in-person showings? 

Private money and personal funds.

Imagine making millions of dollars over the course of your career and then having to pay 30-50% every year to uncle sam instead of compounding that cash over time.This is exactly what real estate professionals have learned to mitigate.To reduce their taxable income, they just buy a building every year, do a cost seg, and use depreciation to reduce their tax liability dramatically.Their personal wealth snowball grows much larger and much faster than their W2 counterparts who give most of their money back to the government each year.Following this strategy as a real estate professional is one of best ways to end up with a much larger net worth at the end of your career.

I had the initial call with a PadSplit sales person, but I wanted to talk to somebody who's actually doing it to get their perspective and advice.

None of this has anything to do with your personal tax return.

Lots of loan options can close in an LLC, helocs usually need to close in your personal name.

Quote from @John Friendas: As a person with an average salary, I was wondering what the maximum amount of DSCR loans a lender would give out would look like?

The person I would seek advice from is a CPA about this. 

I am here to create a business strategy that protects personal and business investments and mitigates risk,  procure a coach or mentor, and set up tax strategies to create long-term wealth for myself and my family. 

Figure out which best fits you and your personality and take it from there.