(a) It is unlawful for a person or entity other than the transferor to engage in, promise to engage in, arrange, offer, promote, solicit, assist with, or carry out a foreclosure rescue transaction for financial gain or with the expectation of financial gain, unless prior to or at the time of transfer, the transferee pays the transferor at least fifty percent (50%) of the fair market value of the property as determined by a licensed appraiser.

It shall be unlawful for any person, corporation, partnership or limited liability company to engage inany business, occupation or activity listed in subsection A without first obtaining a license as prescribed inthis chapter and otherwise complying with the provisions of this chapter.C.

If you are absolutely certain that they are not an heir nor have any standing, hire an attorney and file a motion for unlawful ejectment. 

It is unlawful for any person to engage in the business of, act in the capacity of, advertise as, or assume to act as a real estate broker or a real estate salesperson within this state without first obtaining a real estate license from the department, or to engage in the business of, act in the capacity of, advertise as, or assume to act as a mortgage loan originator within this state without having obtained a license endorsement.

That would be mortgage or tax default, code enforcement liens or unlawful detainer, for example.

so we'll see what transpires. but it feels like on paper everything looks legal, but the process has become unlawful.  

And the way it reads is as if it has been written to portray you as an owner who ironically has no interest in maintaining and preserving her property's use and value.If I were you I'd list it up for sale without further ado meanwhile pursue the unlawful detainer/eviction if applicable.How much back rent do they owe?

If he thinks it is rent, you will still have go through an eviction with the court system, even if it is just unlawful retainer or a trespassing eviction.  

Spend a day observing in your eviction/ unlawful detainer court.  

If a real estate license and you are a REALTOR then not only do you have to see what is lawful but also what is ethical as well.Many activities are not unlawful but can be seen as unethical.