They do free sign up with 100 free credits so you can try them out.

First, keep in mind that some lenders might let you use more than 75% of the rental income, especially if you have a solid rental history or property management in place.

I think they are just an extremely conservative bank and that is their interpretation of Fannie's guidelines.I have already gotten approved from some other banks (credit unions), so I'm not worried, but I am curious if anyone else has run into a bank telling them they need at least a 20% down payment on 3-4 units, regardless of it being FHA or not.

Check with local credit unions.  

Knoxville has some good ones like First Tennessee, Pinnacle Financial Partners, Y-12 Federal Credit Union.

The more lead credits you purchase at once the more you save.

You're the fish.They often use a mix of fear, threat and urgency to push a target to act.It can be as simple as a 24 hours sale from your favorite shop that requires you to log in to your account first or your boss asking you to wire money right now or he/she/they will lose an important contract that will cost millions.So cybersecurity is important because without that, you might have an incident that can cost a lot of money, impact your reputation and might affect your credit score.

DSCR loans are based off of down payment, credit score and either actual or market rents so it helps to supercharge an investor's real estate goals and net worth.

Others tap into personal savings or use business lines of credit for more flexibility.

If you have good credit they don't ask for a deposit so it very easy.