Would you sell for $40k lump, or hold for $1k/month?

[William C.]

I understand most answers will begin with "it depends" but for the sake of argument that's all the details I'll give. knowing what you know about holding a rental property and or flipping a house, what would you do if you could sell now for a $40k profit, or hold for $1000 net net a month in positive cash flow? And why?