The current tenants are refusing to allow new potential tenants to view before they move out, citing it is "too stressful" (in violation of their lease), as well as now citing unreported repairs, so it looks like there might be an extended vacancy time due to this as well. 

Especially if you have had issues with over extended credit, I think the equity line would be a horrible idea.

This is what it states:The covenants, conditions, and restrictions of this Declaration shall run with and bind the land, and shall inure to the benefit of, and be enforceable by, Declarant, the owner of any lot, and their respective legal representatives, heirs, successors and assigns, and, unless amended as provided herein, shall be effective for a term of twenty (20) years from this date, after which time said shall be automatically extended for successive period of ten (10) years.

Could this cause income and expenses to be reported in different years for the same property if the sale extends over year end?

With established, written leases, they can usually get the underwriter to extend the deadline for work to begin after the lease expires.

The plumbing works, just slower than you thin k it should.The more important question:  why didn't you cancel during our extended inspection period, if it was a problem for you? 

Follow up with counsel.If you need references for attorneys in San Diego, I can help you out, but my resources don't really extend to Nor Cal.

I extend my thanks as well as an open invitation for a drink or ten afterwards....

If it’s desirable land that just lacks infrastructure, why wouldn’t neighbors just buy the parcels to extend their land?

By modification, the bank extended the term of the property to 40 years to drop the mortgage payments.