I had zero money and house-hacked my way to 32 properties (pretty much!).

Also get the strong winds and the fires which can be a major concern.Right now at this very moment if I worked 70hrs a week I could make 20 million a year income but once you have so much money and get a certain age the TIME becomes more important and how you want to MAKE YOUR MONEY.

Hard Money Loan How did you add value to the deal?

FHA loans are really only best in lower credit and lower down payment situation. if you have the ability to do 5-10% I would do it. if you don't need money for repairs , you could do on the higher end 10%+ but if you do need money for repairs 5% could be good. some lenders will do recasts on loans and you cannot do recasts with FHA.

They may have spent 50 to 200k to get there ALL RISK money.. 

The appeal is pretty much just the low monthly payment.Are there any ways to bring low money down on assumable mortgage deals to avoid paying a lump sum of $100k+?

Remember, you make your money when you buy. 

It's real estate in markets with population growth, it's pretty hard to lose money if you get an inspection and appraisal."....Wishful thinking at best when buying C/D properties.

Top performing multifamily investors make money.

As bad as the debt is and the resulting devaluation of the dollar, money is backed by hopeium.