Complex sentence: Billy C. Tanner, an Alabama developer and campiagn manager for George Wallace's campaign in the 1964 US presidential election bought it; but he could not secure financing to complete the transaction and subsequently sold his option to Don Tidwell, a mobile-home manufacturer.
Split into simpler sentences: Billy C. Tanner, an Alabama developer and George Wallace's 1964 campaign manager, bought it, but he could not secure financing to complete the transaction. Consequently, he sold his option to Don Tidwell, a mobile-home manufacturer.