I'm talking about getting into the unit, "house hacking", and 1 month in a major expense occurs which could not have been predicted by me and will not be covered by insurance (such as expensive eviction).

Cap-ex depends on a lot of things that are pretty much impossible to predict. 

Using materials you are familiar with is a great way to predict budget and outcomes.

I keep hearing this is predicted to be the most active hurricane season of all time.As if insurance rates weren't already bad enough in Florida and coastal areas.

Yeah, you can't predict these but it makes sense on the appreciation side even though it isn't cash flowing.I've got many more.

We look in the past for trends to predict the future, although it doesn't always work.

This can vary wildly, you can't really predict it based on similar properties nearby. 

“ Napolean HillSwannyWhat's your reasoning for predicting deals a year from now?

One that has a predictability of staying for multiple years. 

Its VERY hard to predict market price changes.