Hi and welcome Adam

There have been several posts like yours on this and other forums. People that have done what you are looking to do say that 50% returns were not realistic and that the best possible is circa 20%. (That’s from people that have taken on a number of money pits to find their one true gem.)

A particularly useful thread is one in the Overseas section of the Singing Pig forum titled “USA 30% gross rental yield?”.