I've co-owned a duplex with my cousin and her husband for the past 8 years. It's in the town we live in and was purchased with cash during the real estate slump.From the start we knew one unit needed some minor upgrades, and those were tackled right away, along with some landscaping. There have been a couple of challenging tenants and a tricky couple of repairs that we got through. We have an LLC. At the first part of each calendar year (usually New Year's Day) we have a quick meeting to discuss continuing on with this investment, the caveat being if one party wants out, the other has the right to buyout, or the property should be listed for sale. We've obviously elected to continue, and have rehabbed and flipped two other properties. There's been discussion about a multifamily property but we never fully go through, so it seems the duplex is pretty much it for buy-and-hold for us. Which is fine, it's decent cash flow, has increased in value and is a solid investment. We went into it knowing that our relationship was more important than money, and we've kept that though first and foremost. Wishing you the best of luck!