When a nursing home resident in Palos Park faced the threat of eviction for not paying her residency fees, she went to court — roughly 200 miles away. The Illinois Supreme Court is slated to rule Thursday on whether the venue where she took her case — Springfield — was permissible under state law. The high court will likely hand down an opinion in that case, Mary Slepicka v. State of Illinois, as well as three others — disputes that involve property rights and prescriptive easement, a …