In Missouri, can heirs refuse to take ownership of special warranty deed property stating obligations binding on heirs?

-Purchase agreement contains no perpetuity clause. -Purchase agreement states laws of Florida rule. -Grantor is a Delaware Corp. -Grantees are Missouri joint tenants with full rights of survivorship in a Florida condo/timeshare (tenants in common) -Deed states, "The benefits and obligations hereunder shall inure to and be binding upon the heirs, executors, administrators, successors and assigns of the respective parties hereto." To this layman, this indicates that I can obligate my unborn great, great grandchildren to pay for the obligations under this deed. That doesn't seem right, like eternal slavery because somebody milleniums ago signed something obligating someone else.