I have a proven track record of being able to identify a property, make the appropriate repairs, and have an ARV that exceeds the cost of purchase and repair.

For #2 & #3 I would check with other successful agents in your office. #4 should come from a solid agent referral as well

Still, you may not have to submit your tax returns. more info would be needed to know for sure, reach out to a seasoned loan officer for pre-approval and see if your situation would allow for this. 

They’re often familiar with market-specific expenses and can help validate your estimates.Lastly, as you analyze more deals, keep track of actual expenses on your properties or properties you’ve researched.

In addition to the different tracks @Chris Seveney descrubed, there is also good information on creative financing and seller financing (including what to avoid).

But, guess what they are not loan officers or underwriters so they turn out to be  wrong.

I would suggest partnering with another investor with some deals on their track record and/or some money to contribute to the deal.

Maintaining a financial track record for your project is facilitated by effective budgeting.3.

If you can brand yourself as someone with a strong track record of getting VA buyers to the closing table efficiently, realtors will take notice and vouch for you and your clients as offers are submitted and this will show tremendous value to borrower clients.  

It looks like you are on the right track with your strategy.