Focus on the economic advantages that your community would have even if there were no tax incentives. Promoters are interested in the following: can an investment make money; will government and the community be receptive to the changes that a new development will bring; will the approval process for development be reasonable and not excessively lengthy; if you can answer positively to the above questions, you are now attractive to an Opportunity Zone funds. It may take some time, but keep on promoting. There is a nonprofit group called Accelerator for America that has come up with templates for communities like yours trying to attract such investment. I have no affiliation but found it a good starting point. Hope this helps you to get started.