I tell them I don't want anyone living in my properties that doesn't want to be there, and that is precisely what would happen if they signed a year lease and their situation changed.

@Randy D for revenue industry standard is charging a flat fee (see chart below) or a consistent percentage of the monthly rent(8-10%). 

Central heat & air*I made this below chart based on this community shared knowledge (Thank you all). 

Central heat & air*I made this below chart based on this community shared knowledge (Thank you all).Need1. would you consider this property at all ?

I think Southern California (my area) is precisely the "most affected" area of which you speak, hence the trepidation of engaging in current flips. 

@Benjamin Aaker is on the money.Your income probably prevents you from using RE to offset your W2 income but you can still use deductions and depreciation to offset rental income.If you are looking to REI to reduce your taxable income on your W2 earnings REI won’t help much at all.One needs to be precise when discussing tax law.

Quicker build times, no external factors (weather), precise details.

@Kevin Wood thanks for your tips. that's a more precised and works for me. :)

Look at this chart.

The tenant probably kept it under their hat, precisely because they have seen the kind of toxic reactions which appeared in a flood at the beginning of this discussion.