Any DIY landlords have questions on construction/repairs?

[Andrew C Hammes]

I just started turning over the first unit that i completely rehabbed and I see my work wasn't the best all those years ago, haha. I've learned how to do things right and would love to share some tips and tricks with others just starting out or maybe a hands off investor who would like to get an understanding of something before they talk to a contractor. 

Anybody have anything?