For example, 150k from my Ira,50k from wife Ira and 70k from personal cash use it for 30% down payment for a property in Southern California.

For example, I was looking at a condo complex nearby, and they're selling for about $108/sq. ft.

Then you're going to need to do a title search and figure out exactly what the liens on title are.For example, let's say Butler County RE taxes have priority over everything other than city taxes, HOA assessments and child support.

Example: Cash Back from Amex ends up valuing points at like 1cent per point.

Once you are comfortable analyzing deals create an example report.  

If it helps I got my start house hacking when I was fresh out of college.

But was hoping someone more knowledgeable could confirm what I think is true or not before I attempt to file taxes by tomorrow.The web gives 3 tax bracket examples of 15%, 25% and 28%. 

For example buy a beat up 4 plex, live in it while you upgrade each unit, raise rents, get a new higher appraisal, do a cash out re fi and go buy another beat up 4 plex etc and repeat.

Can anyone provide an example or resource that would give me some insight as to how this will affect me? 

And the best thing is that you'll start the new investment with a fresh depreciation schedule.