Do they have special permission....maybe they need to make the site safe. 

Airbnb has also worked on some new agreements with multifamily operators to allow a portion of tenants to have the right to short-term rental their units with the property management's permission.

Landlord shall assist and cooperate with Tenant in obtaining any necessary permission from governmental authorities or adjoining owners and occupants for Tenant to place or construct the foregoing signs.

The keys are all the same.”He didn’t talk about getting permission or keys from anyone while telling someone new to real estate how it should be done. 

Find a good tenantPeople who are house hacking and being landlords for the first time should take care to understand the state landlord-tenant laws and the Fair Housing Act to avoid breaking the law or discriminating against a tenant.When the space is ready to be rented, these are the general steps investors follow to screen tenants:Determine minimum tenant criteria, such credit score or income-to-rent ratioPre-screen tenants by discussing requirements such as the monthly rent, security deposit, rental application fee, and background check up frontGather and review applications from prospective tenants and get permission to run a credit report, conduct a background check, and contact current and previous employers and landlords to verify tenant informationDecide on the best tenant and sign a lease agreementAll the best!

In some cases, it is better to ask permission than forgiveness, work with the lender.

Any help to the above would be appreciated, but i'm wondering if the government or someone has put together a list of what's permissible and what may not be. 

Periodic inspections):(c) In no event may a local government do any of the following: (i) adopt or enforce any ordinance that would require any owner or manager of rental property to obtain any permit or permission under Article 11 or Article 12 of this Chapter from the local government to lease or rent residential real property or to register rental property with the local government, except for [gross code violations]Why are they bringing this bill to the floor now?

We've found out that individual judges each have their own opinion.So, we've taken to applying the addage of, "it's better to ask for forgiveness than permission".

In Ohio, and many other places check your state/jurisdiction, a landlord only needs to give 24 hour "notice" that you are entering--- no tenant permission is required.