With the close of the bank he devoted himself more earnestly to the practice of the law and the prosecution of his business as a land agent. The active practice of the law was abandoned in 1834, but the land agency was continued until a comparatively recent period, when his infirmities, and the care of his own estate, grown into large proportions, rendered it necessary for him to decline all business for others. Mr. Case had a natural taste for the investigation of land titles and studying the history of the earlier land owners. His business as a land agent gave him scope for the gratification of this taste, and his appointment as agent for the management of the Western Reserve school lands, enabled him still further to prosecute his researches, whilst his strong memory retained the facts acquired until he became complete master of the whole history of the titles derived from the Connecticut Land Company. From his earliest connection with Cleveland, Mr. Case took a lively interest in the affairs of the village, the improvement of the streets, maintenance and enlargement of the schools, and the extension of religious influences. For all these purposes he contributed liberally, and spent much time and labor. To his thoughtfulness and public spirit are due the commencement of the work of planting shade trees on the streets, which has added so much to the beauty of the city, and has won for it the cognomen of the Forest City. From 1821 to 1825, he was president of the village, and was judicious and energetic in the management of its affairs. On the erection of Cuyahoga county, he was its first auditor. He was subsequently sent to the State Legislature, where he distinguished himself by his persistent labors in behalf of the Ohio canals. He headed the subscription to the stock of the Cleveland, Columbus and Cincinnati Railroad Company with the sum of five thousand dollars, and became a director in the Company. His good sense, a judgment that rarely erred, his extensive knowledge of the village and surrounding country, and the cheerful readiness with which he gave counsel, whenever requested in good faith, caused him to be the confidential adviser of the county and municipal officials, after he had ceased to take an active part in public affairs. One of the rules from which he never deviated, was in no case to contract a debt beyond his ability to pay within two years without depending on a sale of property. In this way he was enabled to accumulate acre after acre in what has since proved to be valuable portions of the city, and thus to acquire a vast estate, which, in his later years, became steadily remunerative.