Did she ever consider selling the business with all the equipment and the customer list? Seems like it might have been a good/better option to get more money and keep the customers happy.
That always sounds good in theory, but rarely works in the real world.
Any buyer/ business that can afford to buy them out, can just buy more equipment and expand in house. The bigger guys don't want the whole thing.
Anyone small can't afford it, so then it's either all borrowed money, or the previous owner has to carry the debt.
Typically the business can't afford to repay interest and principal on the borrowed money, and also turn a profit ( the old owner typically started small and builds over time).
If the old owner has to carry the debt, why sell? You still have all the risk, but now no control.
So I find that it rarely works to sell as a going business. The buyers that have the money, don't really need the business, and the small guys can't afford to buy it.
So sellers/ people wanting to retire - call the auction house and get it gone.
The scenarios that I'm familiar with a buyout that works, are:
a couple employees familiar with the business buy the owner out,
some large companies become "employee owned" which stock transfers, bankers, and typically a board running the company, often with former owners being on the board. Old owners ease themselves out, and can get their equity out of the business.
the owner takes a partner and sells out to the partner over 5 plus years.