Investment documents and legal structure used by investors ?

What is the difference of investment documents used by investors in traditional Vs Self-funded search funds? Is LP/GP most common structure for investors? What are the best practices? Any templates available for information? I am tagging few lawyers and experienced searchfunders in this post for their feedback and comments since this information might be helpful to other searchers in the community. ^redacted‌ ^redacted‌ ^redacted‌ ^redacted‌ ^redacted‌