Not necessarily. Independent financial and legal due diligence should still be performed on the actual records, since personal familiarity with a business does not verify its financial condition or the enterprise requirements.
Budget for independent verification regardless of familiarity
Commission the same financial and legal review that would apply to an unfamiliar business, since personal trust in the seller or the business's local standing does not substitute for verified records.
The investment consists of the money placed at risk in the enterprise: the purchase price, working capital committed to the business account, equipment and inventory bought for it. Substantiality is proportional to the total cost of acquiring the enterprise, so a business with land and buildings requires a correspondingly large commitment, and only capital genuinely at risk counts toward it. Because the standard is proportional, a modest-cost service business generally needs a very high proportion committed, approaching the whole cost, while a capital-heavy operation may support a lower proportion. Sort personal living funds from money committed to the venture, then identify deposits, equipment, inventory, professional fees, compliance costs, and operating reserves. Amounts already spent on the business — equipment, stock, leasehold improvements, non-refundable deposits — are usually easier to characterise, because the expenditure has occurred.