I personally don't see a fire sale of inventory, but rather once people are evicted (a big if, rather) screening criteria are going to go way up.

Buying single family homes that are in too rough of condition for the none investor, but also not enough damage to do quick flips for a full time house flipper. all three deals have provided around $20-25k in returns after all expenses.My question is as experienced investors if you were to start all over what lessons learned do you wish you knew then that you know now?

Most of the issues that could come up on an FHA appraisal are pretty common sense; mainly safety hazards and structural issues.

However, this consists more of someone teaching a lesson.

In Chicago you as the landlord are able to enter the rented apartment without consent if its an emergency situation (pipe broke, fire...) otherwise you have to give a 24 hour notice.

Lessons learned?

Lessons learned?

Lessons learned?

Removed $50,000 in equity to purchase additional property at auction - and sold the property 18 months later for $100,000 Lessons learned?

You certainly want to ensure that both properties are adequately protected from physical damage (fire, lightning, water, wind, hail, theft, vandalism, etc.).