Avoid affordable (undesirable) properties that will typically have higher maintenance and vacancy, and buy A or B properties with less maintenance and better appreciation, which is where the real money is made.

What is the current interest rate on a private money loan approximately $300Kthanks 

@Mike Robb you would think with the money they charge people for very little benefit they could create an app.

This is the value of having someone who has local experience.The company you said, if they are some "remote" company, I guess they could provide the things that you need and save money, but I would hesitate to feel confident if they do not have regional experience and that you would be left vulnerable if issues arise with the design later on. 

.- The system saved us both time and money, allowing us to close more deals.Anyone else tried this?

I have the private money lined up for the 25% down payment.

Do it yourself with TurboTax (or similar software)If your rental is pretty simple (one property, basic income & expenses), you can learn the basics and still save money.

You can still make money on flips here though. 

Combination of own capital, hard/private money lenders, partnerships and raising outside capital.How do you add value to these deals?

The tenants have their own W/D so I can’t make money off that.