So for all you with 0 experience to the pro's, I have a really basic question.  

I tried joining the local Keller Williams office, but I found that there were trainings and other things I needed to "drive to the office, get dressed up for, etc."

So make bad pictures as hard for an appraiser to take as you can.When you meet the appraiser, be wearing the most expensive duds you own and be driving the most expensive car you can rent.

The system is set up to drive you to attorneys many times and that is just the way it is.

Or is it best to keep rehab pretty basic and cost-conscious? 

Basically, 1) if you travelled after identifying the propery that you bought but before the purchase , that would be added to basis.2) travel after buying the property might also need to be added to the basis, but there are some flexibility, and can be deducted.  3) majority of  the work done before renting will be added to the basis.

I do have a question, I’m going to be driving for dollars in the east end of LA County.

They were in great neighborhoods where other investors kept driving pass.

So basically my question is what other comapnies are out there that provide insurance for multiunit properties?

So basically at the minimum you will need $25,000 to get into flipping houses.