Somewhat counter intuitive, I know.2) 20%-30% is the "norm" but it can go anywhere depending on how creative you can get with the financing.3) Yo didn't describe what kind of properties you are going for.

You'll find that spending a couple of minutes adding some detail to your profile as well as adding a picture of your face will do wonders in getting people to interact with you.Good Luck!

Just putting this out there...Thanks again,MS Immanuel is giving you good advice IMO, and i would follow it, ignore the BP calculators, and understand how to do your own analysis from scratch, what all the variables are, how they interact, and why they are important.Another serious deficiency in the BP calculators are that they completely ignore appreciation.

State issued licenses are required for interactions here.

Some Physical (General) Inspectors are contractors and can give you limited intuition into the structural condition based on their experience, however, YES, you would need a Structural Engineer.  

Are you good at interacting with people?

Similar to what you are doing, I am focused on creating more of a repeatable, deliberate process to my rentals; same application, same e-mails, same steps in the process for every single applicant, including tenant screening criteria, reasonable accommodation policy, and I include a "cover sheet" in my e-mails and in-person interactions that provides an overview to any applicants what our rental process looks like. 

I am excited to begin interacting with those who are much smarter than I am.

Set up a keyword alert for your area and interact with the other people in your area as much as possible.

Their is a lot of interaction needed with PM to make sure your out of area cash flow cows work.its those that think they can just buy them and forget them that usually have some issues.