Usually the person you're talking to isn't going to be a source, but occasionally they can introduce you to someone who is. 

The odds of you finding the scarce lender that has some amazing program others do not in the market is very small.It happens occasionally but only a small fraction of the time.

Yes, there's the occasional hiccup, but most go according to plan.

In the Jersey areas I look, $60-$80k and occasionally over $100k is not uncommon for a full rehab.

people who buy a large plot of land, then subdivide it and sell the plots with no improvements.Your other job and occasional dabbling in flipping doesn't matter. 

You don't need a property manager if the property is in good condition, you can visit occasionally and you are willing to use online recommendations and find maintenance people as needed.

However, I am a local wholesaler, flipper, and occasionally will hold a rental if it makes sense.

Occasionally someone asks for an extension with late fees and we will agree if we feel the tenant can be trusted, provided they stick to their agreement.

I have a GC who handles most of the work but ill occasionally hire my own subs to handle things as well. i generally think my time is better spend focusing on acquisitions than on managing a construction project.

So you need to make your leases flexible enough to allow for an occasional flunk out or unplanned medical issue.