zekensted,
I have seen some buyins that worked very well and some that were failures! Any financial transaction requires work on the part of the "investor". It appears that you will be investing your time and efforts in exchange for ownership so you should execise some deligence before proceeding.
Do some research so you correctly understand what ownership entails. You may want to seek counsel from someone that is knowledgable. That may require paying a professional if you do not have a friend or family member that is qualified.
Concerning liabilities - Stock ownership in a corporation DOES NOT make the stockholder personally responsible for the liablilities of the corporation. This would only occur if you issued a personal guarantee a creditor. Most likely the Dealer Principal was required to do so unless the corporation is extremely well capitalized.
If the owner is truly seeking a "partner" and not merely using this to reduce compensation it can greatly benefit you. It can also be a complete waste of your time.
You would be astonished at the number of present dealer principals that got their break this way. Right place, right time, a lot of luck, and hardwork, and your name could be on the building.
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Have a tremendous day
Bob Britting
[This message has been edited by JustBob (edited 11-14-2006).]