Partnering with home owner for rehab and flip.

[Roy Ramnarine]

A homeowner approached me to invest and rehab their home in order for them to put in on the market and get a higher return.  I would be repaid renovation costs and 30% of net profit.  My question is, how do I protect  my investment if the homeowner decides that they don't want to sell?   A contract isn't worth much, because at the end the day, my money would be tied up in the property.   Is there a way to force a sale?