How to buy ownership in the house I’m currently renting?

[James Canavan]

I currently am renting a house that I would really want to retire in. I can’t afford to offer what the market value is, so I’m wanting to see if they would consider me buying 50% and I would handle all responsibilities of property upkeep. This would elevate the owners from having a management company, all responsibilities of property upkeep and also put a large amount of cash in their pockets from my purchase of 5O%.

Does something like this already exist and if so what’s it called? Thanks