For example, you'll want to see that they're approved for 3 bedrooms if you're renting out a 3 bedroom property.If the voucher looks good, and it's an applicant you think you might be interested in renting to, then you'd have them fill out an application and you'd screen them like any other applicant.   

I fell into it and I'm a prime example of how a fool can get lucky. 

@Chad Urbshott's example is a good one.

For example my triplex is in SF5000 zoning but was built when that area was LDT zoned,   and is grandfathered legal for that reason.

However, the land can be owned by the self-directed IRA and then rented to a third-party provided it is not your parents or theirs children, for example. 

For example, in my NJ city you can't raise rents more than 4% a year.

Example you buy a house for 15K, it needs 50K to be a 100K house.

For examples, pros and cons of plywood boxes, steel caging materials etc.

I have driven for Uber, for example, and I put 25% of those earnings aside for tax time.

Seems like renting it with the above numbers would leave you, at best, very lean, and, at worst, in a negative cash flow position after accounting for property management, vacancy, repairs, and Cap Ex.For example:$1,800 Monthly Gross Rent - $1356 (PITI) - $180 (10% for Property Management) - $180 (10% for Vacancy) - $90 (5% for Repairs) - $90 (5% for Cap Ex) = -$96 Net Monthly Cash Flow (It would be even worse if you could only rent for $1,700 per month)While you might not need repairs or capital expenditures in the short-term, with a 12-year old house, you're probably past the midpoint on the useful life of some of the systems in the house (e.g.