$2.2 million rent is on the higher side, but not unreasonable.

It's not unreasonable to assume an investor will want an additional two to five percentage points or more in discounted return.  

(B) If the landlord makes an entry in violation of division (A)(8) of this section, makes a lawful entry in an unreasonable manner, or makes repeated demands for entry otherwise lawful that have the effect of harassing the tenant, the tenant may recover actual damages resulting from the entry or demands, obtain injunctive relief to prevent the recurrence of the conduct, and obtain a judgment for reasonable attorney's fees, or may terminate the rental agreement.

We've even had two realtors we've worked with speak with our mentor (who's been investing since 1975) believe that he's being unreasonable because he advises that we offer no more than 50-60% of the ARV and no more than $100 earnest money. 

The property insurance was reasonable but the car insurance was unreasonably high.

I took a break from working with unreasonable sellers on some 50+ unit buildings.

That would be unreasonable and cost you more money.You can't rent the place without solving the underlying problem and that can't be done till the snow clears.If the tenants were to go to a tenants rights group you will have some very obnoxious lawyers in your face. 

As a result, it is my non-expert opinion that you have demonstrated reasonable effort.Based on what you've documented, you can also show cause that the so-called "Mentor Hotline" is unworkable and untenable the way it's manned and operated... and that it is calculated to lead to an undefined (and indefinite) period of prohibition against exercise of the "money back" guarantee; an unreasonable restraint of a consumer's right and an act which clearly violates the implied warranty of merchantability of their service.As far as what you send your card company - I would not engage in the lengthy letter until such time as the fraud department asks you for a full accounting of the facts.  

Is it unreasonable to request that a guest use my fireplace (wood is provided) until the issue is resolved?

I just wanted to make sure what the standard is in the industry, and that I am not being unreasonable.