Being an investor looking for deals is like being a fisherman...you want to have as many lines in the water as possible.As @Tyler Fontaine pointed out, networking is one "fishing hole", also paid ads like @William Harvey suggested is another.That said, you'll want to have a "go-to" hole where you know you can almost always get a catch.

Probably not one person on earth predicted negative oil prices a two years ago and $100bbl oil today.  

I've got bigger fish to fry.

Say someone works in a field where incomes are subject to change dramatically such as oil and gas, certain types of construction like road building etc, these people may work large numbers of hours and make good money but there is usually some level of base pay and should conditions change such as oil prices dropping or say having a wet summer where construction might be delayed for extended periods etc, you will want to evaluate a prospective tenant on a base pay as well as the highest gross income possible.In an oil and gas situation it would be totally possible for a person/family to make $4000 a month right and your rent lets say is $1500/mo, well what happens when the price of oil drops and there is no overtime pay coming in and that monthly income drops to $2000/mo????

Funny thing is one block away on Frankstown Ave and you got the people hanging out in the streets (near Hooks Fish and Chicken).

For example, my heating for my duplex isn't split so I can't legally charge for oil.

If I rented a car the rental agency wouldn’t let me change the oil or repair a door or rotate the tires. same thing with houses.

I've been told there's less competition at 20 to 75 units because the hedge funds and such don't mess with the smaller deals.one huge advantage to bigger deals is they can support their own dedicated staff like a full time pm or maintenance man.if your goal is 300 and beyond, the honest answer is go for the big fish. 75+.

The desolate coast, the mountains of San Pedro Martir, the whales of Scammons Lagoon (Oro de Liebre), the hot springs of Guadalupe canyon and Puertocitos, the party atmosphere of San Felipe, the remote desert terrain, the missions, and the fishing and diving.I do not like the extortion, RE financing, difficulty obtaining reliable RE team.

Timber  Minerals  Oil  water rights  conservation easements  etc etc.