Another area that is great for multi family is Dupage County, it's going to cost you a pretty penny but rents there are growing at a fast pace and people rent those for those high prices because it's a good area top 25 county in the country and people can't afford single family houses there unless they make at least 100 k per household which is alot for the midwest.

The largest property holder in Portland OR never sold a property, although he does sell condominiums he develops and builds.Rich Weese says everything is for sale and he as a few places.The people I learned from bought and sold but bought more than they sold.

City Heights, San DiegoSecond floor unit of Condominium of 6 unit complex736 SqFtBuild in 1992One car garage + one off-street parking spaceRehab cost about $2,500Rent: around $1,200HOA fee: $220 (include CAM, Bldg Maintenance, Water, Limited Insurance) Property tax: $1,000 Listing price: $95,000**This complex was converted into condominium in 2005** Newer roof, well maintained outside.

According to the 2000 Census, of the 17,890 housing units inside city limits, 15,966 were occupied, 10,033 of them by families. 31.1% of occupied households had children under the age of 18, 36.2% were married couples living together, 23.3% consisted of a female householder with no husband present, and 37.2% were non-families. 33.2% of all households were made up of individuals, and 14.0% had someone living alone who was 65 years of age or older.

I create "pre-app" forms on Google Forms that ask about pets, who will be living in the house, their household income bracket, history of evictions or violent felonies, and even give the applicant a chance to brag on themselves a bit to tell us why they'd make a great tenant.Once I collect these pre-apps I take only the qualified applicants and show them the house, then if they are still interested, I invite them to go through the full application process with background/credit checks from there.

- What is the total household income?

If they’re getting the price they’re asking for, that’s good.Low unemploymentPer capita and median household income risingGdp growthAny thoughts on which of these is more important and if any are ignorable?

I specialize in condominiums in my area and at this point I've looked over so many disclosures and financials, I can tell pretty quickly based on the number of units and cost of cap expenditures about how likely they are to have an assessment in the near future and for what (roof, elevators, etc.) even if it's not on the agenda.

Also they didn't build almost any in the Last 7-8 years, so around 150-200k behind. this is the same in every major cities. but if you are willing to do Reno, there are still some gems to be found. banks require 10% from first time buyers and 20% from others. onlu allowed to lend up to 3.5 times the total household income. 30% required from investors. government is hoping for the landlords to sort out the housing problems, but at the same time won't allow us to make any profits on it and create too tenant friendly legislations.Thanks for your replies guys. 

@Max Householder has a good recommendation as well.