I generally agree that buying SFH as first investment is an easy way to test the waters; however, if you’re set on REI I suggest buying a duplex or quad.

Any general advice for a first time flipper?

I think about my market (Cincinnati) and the only reason you don't see new quads is cost to construct is generally too much to make sense.  

After a 1031, waiting 6–12 months before a cash-out refinance is generally advisable to avoid scrutiny on intent.

Yes pretty common, minimum downpayment is generally 25% (occasionally that 20% will work) but just depends on your situation.  

Generally what I see is Hubby is handyman and Wife does books and leasing..

In todays environment some syndicators might be pushing out into more B- to C areas to find properties in overheated markets so the risk/reward ratio might not be as good as in the past.Not talking about Brian's deals just in generalities.  

Their customer support is terrible and some of their software, but they have about 8x the site traffic in general than Airbnb and VRBO combined, surprisingly.  

Credit score- the higher the best. 760-780+ generally gets best pricing for investment property loans with most lenders.

Yes, he is named after the nazi war general.