Since you were generous enough to give them a house, I'm sure they will help.If you're asking how to get the house back, I say don't forget how you repaid your parents by being kind and compassionate. 

It was a Mass Housing program that went through TD Bank and their "Right Step Program" for which i had to meet certain criteria (generous income limitations, over 650 credit score, first time homebuyer course, first time landlord course, and probably a couple others). 

Enjoy Life, Be Generous, and Have FUN!

Than you all for the generous inputs.

Please know that small gesture (you claim it was just a piece of land) you made will affect thousands of lives for the better. :-) 

I eventually gave the info about the deal to the investor that I worked for and she contracted with the couple the same day I made a $5k commission after closing which was generous for a finders fee.

BP has a wealth of information and I've found the community to be very generous with sharing information!  

FHA is generous when it comes to lower scores.

In my experience, the local Minneapolis/Saint Paul investor community has been so generous with their knowledge and time.

How generous of him to give you some of his settlement.