We inherited a vacant residential lot in Riverside County, California some time ago, and we just ordered a survey. As suspected, it turns out that about 10% of the neighboring house falls in our lot. Iím guessing that this is due to a Title error and that it would need to be resolved before they can sell etc. But what are our options? Do we now own some portion of their house? Should we charge them rent or contact their mortgage lender? Can we initiate legal action such as a partition lawsuit if they refuse? Should we record the survey with the County? The house is not worth that much, so it may not merit the expense of an attorney.