There's a lot of demand and low supply for pet friendly.

You need to sign a regular purchase and sale agreement with an assignability and marketing clause with you as the buyer.

Now as an agent, I come across situations like this on the regular: buyers and sellers always think they know more than they actually do, and often screw something major up without even realizing it.

It probably depends on the specific market and the supply and demand in that market.

I did a double check on my properties (I do this regularly anyway), my discounts remain as I had them previously (I do offer different discounts for length of stay).  

That is the sixth month in a row that the supply of homes for sale has increased.

Your challenge is to make your request seem like it’s part of their regular, bureaucratic tasks. 

I used to regularly get threatened with lawsuits.  

Tenants agree to return the appliances in the condition supplied less any normal and reasonableThe tenant emailed me about two days after moving in and said the refrigerator was not supplied in complete working condition and is demanding I replace it ASAP.

You don't know the law, you don't know how to handle difficult tenants, and you aren't local to work on it.This is what Ohio law says: “The tenant shall not unreasonably withhold consent for the landlord to enter into the dwelling unit in order to inspect the premises, make ordinary, necessary, or agreed repairs, decorations, alterations, or improvements, deliver parcels that are too large for the tenant’s mail facilities, supply necessary or agreed services, or exhibit the dwelling unit to prospective or actual purchasers, mortgagees, tenants, workmen, or contractors.”I would give the tenant a short, direct warning that they have 72 hours to coordinate with the vendor and set a schedule for repairs.