Failure to do all of this could result in you being liable should someone actually be harmed. 

In order to authorize a change in noncon­forming use, the Board of Adjustment shall consider the relative impacts of the existing noncon­forming use and the proposed nonconforming use with regard to traffic, noise, pollution, visual appearance and compatibility with the neighborhood, and shall make the following findings:1) The proposed use is expected to result in impacts which are less than those associated with the existing use.2) The proposed use will be more compatible with the surrounding neighborhood than is the existing use.3) Approval of the change in nonconforming use serves the public health, safety and general welfare.4) Failure to approve the change in nonconforming use would result in a hardship to the owner of the property on which the nonconforming use is situated.An existing nonconforming use shall be discontinued within 60 days of the date of approval of a change in nonconforming use.

Tenant agrees not to cause any noise or activity that disturbs the peace/ enjoyment of the neighbors and failure to do so, is a lease violation; 2.

Since this is a case of a possible failure of title I doubt the insurer would rely on a bond to insure your purchaser w/o exception for the problem but it doesn't hurt to ask. 

@Greg Scott that is some great adviceI will have my lawyer draft the lease w/ cover letter:1. if you dont sign, means month to month status which adds 100 to the lease2. failure to sign means non renewal and they have 90 days to leave. 

But if you can find a way, set aside some of your precious time for learning painfully slow lessons, and screwing up, and don't believe anyone who tells you they have a sure-fire way for you to bypass the learning curve of this business, or that your time is too valuable to waste on failure.

Don't set her up for failure. 

You will become more confident as you learn by experience and about others' successes and failures.

Failure to meet the minimum standards will be cause for termination of the rental agreement.This Addendum modifies the rental agreement, and is part of an effort to establish uniform standards for Tenant and resident housekeeping.

The advantage to paying for materials and equipment directly is the suppliers will not have a reason to place a lien on your property for failure to pay.