I believe if people make money and there is sufficient housing supply, housing will become affordable. 

I think 100 Mbps or higher is sufficient for general computer use and tv streaming. 

Duplexes are a little easier than 3-4 units with FHA since they don't have to meet self-sufficiency requirements.

Your primary insurance policy with $300,000 in liability coverage should be sufficient in 99.999% of all lawsuits.5.

I was intrigued with the prospect of buying distressed properties in bulk quantities and finding local investors who could rehab them and put them back on the market.

Just don't make the mistake of comparing what someone else profits on a role, to decide whether your compensation is sufficient or not. 

I think you're confusing the quantity of items with curb appeal.

If the rental income doesn’t sufficiently cover the debt payments by their standards, they’ll limit the loan amount, even if the property is worth more.You could try a few alternatives:•Look for lenders who specialize in commercial real estate and have more flexible DSCR requirements.

Isnt it sufficient using apps like Stessa or Avail or Rentprep etc etc?

Self sufficiency rule makes 3-4 units almost impossible.