Delaware remains the default choice for LLCs with outside investors, and its statute is the most permissive in the country. 6 Del. C. §18-702(a) lets the operating agreement define transferability however the members like, and §18-1101(c) allows fiduciary duties to be eliminated entirely except for the implied covenant of good faith and fair dealing. A buyer taking a minority position should read that waiver closely: the manager who owes no duties today owes none after closing either.
California applies the California Revised Uniform Limited Liability Company Act, where Cal. Corp. Code §17704.01(d) requires the consent of all members to admit a transferee unless the operating agreement provides otherwise. Confirm the company's franchise tax and fee status with the Franchise Tax Board before closing, since a suspended LLC cannot enforce its own contracts and the balance follows the entity.
New York carries a trap that catches acquirers repeatedly. Under N.Y. LLC Law §609(c), the ten members holding the largest ownership interests can be personally liable for unpaid wages owed to the company's employees, so a buyer taking a significant position inherits that exposure and wage diligence belongs in the schedules. New York also taxes the transfer of a controlling interest in an entity holding real property under N.Y. Tax Law §1401(e), which turns a membership interest sale into a taxable conveyance when the company owns a building.
Texas allows transfers under Tex. Bus. Orgs. Code §101.108, and §101.109 limits the transferee to economic rights until admitted. Franchise tax standing matters here too: a company whose right to transact business is forfeited cannot maintain a suit in Texas courts, and reinstatement is the seller's obligation, not the buyer's problem to discover after closing.
Florida codifies the transferable interest rule at Fla. Stat. §605.0502 and, following Olmstead v. FTC, treats single-member and multi-member companies differently in §605.0503. Foreclosure on a charging order stays available against a single-member LLC, so a buyer acquiring the only interest in a Florida company loses the creditor protection a multi-member structure would have preserved.