It will all depend on the terms of your land contract. Bring your contract to a local attorney and have them review it and possibly right an opinion.
Mr. Esposito is a Ohio-licensed attorney only. The information is not, nor is it intended to be, legal advice. You should consult an attorney for individual advice regarding your own situation. Answering this question does not in any way constitute legal representation. Contacting Andrew Esposito does not constitute legal representation, nor is any information you provide protected by attorney-client privilege until otherwise advised.
Probably not shady
And probably not against terms of land contract
Contract rights are usually assignable unless otherwise prohibited in the agreement