The final fourth sections contains standard text including details such as contract information, the relationships that exist between the finance parties - in the event of more than one tender and more than one law that apply to the agreement.
"Investment banks" create loan agreements that cater to the needs of the investors whose funds they attempt to attract; "investors" are always sophisticated and accredited organizations not subject to bank regulatory supervision and the need to cater to the public trust. Investment banking activities are supervised by the SEC and their main focus is on whether the correct or proper disclosures are made to the parties who provide the funds.
This helps individuals from squandering much of the loan or spending more of it then they need to. If a business is seeking a construction loan agreement, most banks require personal guarantees for the loan to move forward. The maximum term on a construction loan agreement is only 12 months, which puts pressure on the borrower to repay the loan as quickly as possible.
For commercial banks and large finance companies, "loan agreements" are usually not categorized although "loan portfolios" are often broadly characterized into "personal" and "commercial" loans while the "commercial" category is then subdivided into "industrial" and "commercial real estate" loans. "Industrial" loans are those that depend on the cashflow and creditworthiness of the company and the widgets or service that it sells. "Commercial real estate" loans are those that repay loans but that depend on the rental revenues paid by tenants who lease space, usually for extended times. More granular categorizations of loan portfolios exist but these are always variations around the larger themes.