Your area may be different, but most of the ones I have seen in the areas in which I used to appraise involved one or more of the following issues:
- properties in substandard condition that would not be eligible to secure an institutional mortgage, and/or
- an above market sale price, and/or
- had monthly installment payments that were based on a double digit interest rate and often included a balloon payment
These types of deals are extensively pitched in lower income areas and to persons who have crappy credit or a spotty job history and thus cannot qualify for a mortgage. You also see a lot of rent with purchase options in addition to land installment contracts in these types of areas as a lease with a purchase option is another way to extract additional money out someone who is desperate and unsophisticated.