All files are accounted for, but payment history could be difficult to actually prove, short of either party proving payments.Would you buy?

Some file can't be underwritten with automatic so goes under manually underwritten files. 

They also get  30% split of profits above 7% annual return.The 1.5% origination fee is a commission essentially for bringing the deals to the investors and is paid as equity in the deal, not cash.My questions are these:1) Is an origination fee/commission standard for a scenario like mine?

Would like to know the approximate fees attorneys charge to file the Sce 22-5 Notice and then the cost to obtain order for tax deed.  

When it comes to a standard SFH rental, I have a fixed price for rent for at least a year with a tenant and a vacancy % (that I get from my property manager) that is fairly accurate. 

You should do your due diligence on any referrals we see a lot of investors get screwed by GCs, fraud, filing bankruptcy, etc..we see it all the time.

She is not wrong, but it sounds like she has conveyed it to you in a confusing manner.FHA requires the appraiser to go out to the property and certify that it is habitable by FHA standards. 

Speaking for myself, I could do way better just taking the cash, paying the tax and buying great deals over time, than having to jump through the 1031 hoops, figure out the difference of paying the tax vs cost to defer, you may be surprised how much the 1031 will cost if you are buying several properties. also dont know how Cali works, but the tax rate may be lower depending how long you have owned/lived in the condo, and how you file taxes for it.  

We filed taxes per day per geography/country to manage costs down.

Like this (using your numbers):$283,040 ARV x 70% = $198,128 (This is your All-in Costs Target)- $24,400 Rehab estimate = $173,728- $4,500 Closing costs = $169,228 (you left off the Refinance fee)- $6,000 Holding costs (my standard estimate) = $165,228$165,228 is my Maximum Allowable Offer (MAO) or purchase price.