Commercial properties will have shorter terms, higher interest rates, and balloon payments.

Private Lenders tend to provide you with a shorter time but can give you more time to shop around for a long term loan. 

In general, a strong agent will get the average seller 11-18% more than if they sell FSBO in a shorter amount of time. 

Rent to own envisions a much shorter time frame.

The advantage to the HELOC is that the closing costs are way less, but typically they don't have a fixed rate and the amortization schedule is a lot shorter.

Second, you’ll pay a higher rate with a shorter payoff.

@Ken Rubin if it isn't spelled out in your lease then it is much shorter than that.

I would have them sign a shorter lease with the plan to get them on a better 12 month cycle.

I'll give my thoughtsThey couldn't really afford it because a through background check was not doneJob LossJob relocationEviction - they stopped paying because ...They need a bidder place due to new baby or family member that comes to live with themThey get put in jailThey need a cheaper placeThey want a shorter commute to workDivorceDeath (in family or one of tenants)You raised the rent too muchPerceived or actual problem with the houseHigh Utilities at your house

They are also typically shorter termed - like 5/1 and 7/1 ARMs.