California corporations are governed by the California Corporate Code which may be found here. Below are direct links to some helpful provisions.
Delaware corporations are governed by Title 8 of the Delaware code. More specifically Chapter 1 of Title 8 governs general corporation law. The entire Chapter one may be found here. I have included direct links to some provisions below.
Nevada corporations are governed by Title 7 of the Nevada Revised Statues. Under Title 7, Chapter 78 governs private corporations and the entire chapter can be found here. There are direct links to some helpful provisions below.
Texas corporations and other business entities are governed by the Texas Business Organization Code. The entire Business Organization Code may be found here. I have also put direct links to some important provisions and sections below.
In LexisNexis researchers may search a database consisting only of Mergers and Acquisition Cases, Federal and State.
The Bloomberg Law database also includes Merger and Acquisition cases.
Search terms can vary wildly depending on the type of contract and provision that is being researched. Therefore, consider looking at the Modern Corporate Checklist treatise for ideas of how to phrase issues.
Specific securities regulation is beyond the purview of this guide. However, SEC rules and regulations may affect exit strategies affecting stock shares. Researchers may access the rules and regulations for free here.