Weeding out tenants...a pecular situation

[Robert D.]

So i recently listed a property up for rent after having spent quite a bit of coin since the last tenant, lets just say, didn't take care of the property. So i carefully weeded out prospective tenants by lack of returned calls or no shows when showing the property. i found this nice married couple with 2 babies and a mother in law that wished to live with them. The mother in law is the anchor bringing in the biggest portion of the $$. Without the MIL it is unlikely they would qualify for my rental. Well let me be honest here. They would not be able to qualify. Nothing lavish just run of the mill SFR. Like i said great people. I know appearances aren't everything or at least aren't supposed to be. So i have one thing that is kind of bugging me about this situation. What if the the mother in law decides she has had enough of living with the couple and the 2 babies? All three adults will be on the rental contract/agreement.

other details:

Husband just graduated and is going into teaching. 0 income at this moment.

Wife is a stay at home mom, sells clothing online. Minimal income.

MIL is stable and set financially with career in medical field. Income over-qualifies.

Any thoughts? suggestions? comments?