Any type of seller financing should absolutely be reviewed by your attorney and your cpa.

- No it can be any type of investment property- If I did buy a duplex here in CA could I live in one side while renting out the other? 

The first step is typically posting a notice to end tenancy, it is normally 30 - 60 days depending on the area and type of lease.

Many companies only release certain clusters and types of data which can make assumptions riskier and modeling outputs more variable. 

Unfortunately, the great jumbo products of First Republic no longer exist but maybe in the future another lender will repeat that one.....

Not sure if anyone is aware of this, but Marco's partner and CFO, Ronald Fossum, was charged with fraud by the SEC fairly recently and barred from participating in any type of similar activity.

To answer your question yes its enough but in many cases it might be risky.2. location, room to raise rents, occupancy of property, local laws, type of investment are just a few topics that play a huge part. 

For anything less than that with a traditional bank or credit union, you'd likely be looking at a portfolio product (the bank/CU will hold your loan and not sell it on the secondary market). 

We have had these type of leaks lots of times.

You can provide a loan modification approved by the bank to be accomplished immediately upon the purchase of the note, this, along with the waiver and request for the sale by the borrower takes the bank's liability away selling a note to a non-banking/mortgage broker type buyer.