There were court rulings recently requiring auctions like this to refund the overage to the owner which in this case is the person who bought it at the last minute from the heir. 

@Sandee SampsonA construction attorney would be who to contact but you are going to spend a lot more than $7000 in getting this resolved against a builder.Also let’s say you win, the courts could also say you didn’t pay for a retaining wall which is needed so it’s a betterment to the property so you would still need to pay for the wall and they would be responsible for some soil etc.

They use an eviction service for serving the tenant and coordinating with the courts. 

I live in a trailer court a mobile home trailer house I own just pay lot rent so other night we minding our own business he came over to stay the night because it was day of work and management was drunk didn't know to later but she was knocking on my door I didn't hear her as I was cleaning up a mess in bathroom my son made my older son said someone at door it was management she yelled screaming call my man all kids of names yell at me about my disability saying things about his sex offender registry and such in front of my kids made a much of threats and bunch of other things were said but problem was she did it drunk and had most of the neighbors on my street gathered together to watch or do this and then gathered around gossiping about me afterwards.

There is a lengthy discussion comparing and contrasting the "broker" and "finder" parties and their role in the transaction in the court case described here: http://law.justia.com/cases/new-york/other-courts/2010/2010-20104.htmlWhile I realize this does not apply directly to the topic at hand (Wisconsin), I and other BP members in other states should find it very informative and educational.

I added value to the deal by strategically investing $15,000 in targeted renovations, including modernizing the decor and enhancing the property’s appeal with stylish finishes and functional updates.

My wife and I had a lot of money stolen from us by a so-called property manager in Cleveland (who was later brought to court by the attorney general due to other crimes he committed) and we ended up being able to place the property with Re/Max Haven Realty. 

I added value to the deal by completing mid-level renovations that enhanced the property’s functionality and appeal, making it a desirable rental option in the area.

For curiosity I asked Co-Pilot about it and got this response:The language in your CC&Rs stating that “no business or bed and breakfast is allowed” can indeed impact the interpretation of short-term rentals, but it may not be as straightforward as it seems.Definition of Business: Courts have often ruled that short-term rentals (like those listed on platforms such as Airbnb) do not necessarily qualify as a “business” in the traditional sense.

So he may consider this most of the basic functions of PM without actually being a PM (and thus not subject to regulation).