Nobody knows what the reinforcement inside the gradebeam consists of, so nobody can do anything other than guess, based on their experience with similar stuctures in the area, what the maximum span between the piers can be before the grade beam collapses.

Could further damage occur, or house collapse?

Worst case scenario they make a big mistake, things get out of hand and the business collapses along with their finances. 

It works until something happens and all collapses leaving you in the dust. your question was answered.

Devastated by the collapse of the steel industry in the 70s, 80s and 90s.

Those quaint stained glass windows in the living room, It may be time to remove and frame them for use in your personal residence.That shelf grandfather built will soon be overloaded and collapsing with who knows what.

There are lots of expensive mistakes that can be made (collapsed sewer pipes may not be easily recognized without a scope, and can cost $20k in Cincinnati to replace) But, I can make on one flip what takes me 5+ years to net in rent.  

I think a good property should be able to serve as short & long term rentals in needed. if it caters heavily on one side, it eventually will collapse on its own.

Collapsed duct? 

For example, how many have been on YT and BP since start of COVID giving DETAIL predictions that collapse was eminent?