But on the other hand you could conceivably get better financing terms (96.5% LTV with FHA for example), and/or much better appreciation than 8% in some markets.This is just a crude example to show that real estate can get you there in half as much time as many other options. 

It could conceivably be an issue when reselling but not likely.

If you were to concentrate on learning everything there is to know it could conceivably take 6 months to a year to consume along with properly researching your market.Learn your market, finances, expenses, cash flow, tennat screening, PM screening, state landlord tenant laws, etc. etc.You are at stage 1 in a 100 stage learning process, slow down.

So depending on your numbers it is very conceivable that you didn't shelter any profit in the 1031 and will pay tax on the full amount. 

So, I could conceivably certify a 1-yr owner occupant, perform a live-in rehab, and re-fi at 100% appraised value?...

I luckily did not have to go through this in my (ongoing) project for complicated reasons, but it's conceivable that you could be denied at this stage, due to parking concerns or other concerns.

I'd try to see the best spread of different types of properties possible, so you can see as many neighborhoods and conceive as many strategies as possible. 

So it's very conceivable (and has happened to me) that extremely pertinent information about a property (such as the presence of open, still-accuring violations) will only be obtainable by doing a records request at the municipality level.

So what you are conceiving is totally doable.

You are renting to low income tenants who could conceivably stay in these units for decades.