Then they make a **** load of money on them, and still collect on loans  which they never make (plus interest). 

This may be because (1) until recently interest rates were trending lower so if the lender is getting a higher rate on subject note than he can obtain on new note there’s no monetary incentive to call the note (2) in the past technology did not exist to identify the property transfers (ten years ago county recording docs were not online) and (3) the lenders rather collect payments than own property.  

Also, focus on 2 years of job/income stability.Class D Properties:Cashflow vs Appreciation: Typically, all cashflow with little, maybe even negative, relative rent & value appreciationVacancy Est: 20%+ should be used to cover nonpayment, evictions & damages.Tenant Pool: majority will have FICO scores under 560 (almost 30% probability of default), little to no good tradelines, lots of collections & chargeoffs, recent evictions.

Quote from @Andres Lasaga: I am in the process of selling a property to the tenant I have been renting the house for 4 years.I want to outsource the promissory note collections and reportsIt would be only ONE property, for now, any recommendation of a company that can manage the collections and reporting?

For example a 25 y o applicant who has used credit minimally and has an unpaid bill of $50 in collections from when they switched phone carriers may have a low score, but the only negative on their credit is this one SMALL $50 debt.

Also, focus on 2 years of job/income stability.Class D Properties:Cashflow vs Appreciation: Typically, all cashflow with little, maybe even negative, relative rent & value appreciationVacancy Est: 20%+ should be used to cover nonpayment, evictions & damages.Tenant Pool: majority will have FICO scores under 560 (almost 30% probability of default), little to no good tradelines, lots of collections & chargeoffs, recent evictions.

If you're going to work with contractors, collect rent from tenants, or try to bed the hot chick at the bar, you better learn to recognize warning signs and get out early. 

Nothing to get crazy about but no need to deal with tenants, property taxes, repairs, vacancies, etc. just sit back and collect.

.- >65K in rent collected- having someone to bring in Amazon packages when it is raining outside- generally having someone to watch over the property when out of town oftenI think the headache is worth it.

I answer my phone 24/7.Seems to either impress people or surprise them....