Should I sell or rent out single family home?

[Eileen A.]

I have a single family house in N Las Vegas which is on the market but not getting any viable offers. It's paid for and the people across the street offered me $1800 to rent for her mother and brother. Mother has a pension and brother is looking for work. I'm not sure if my neighbors would come up with the rent if needed. How does that work? Would they have to be co-signers on the lease? I'm hoping it will appreciate in value over the next 5 years.  I live out of state and would give it to a PM. 
Or should I just leave it on the market longer and sell?