In the exercise of this good faith judgment and determining whether a client's funds can earn income in excess of costs of securing that income for the benefit of the client or third person, and thus provide a positive net return to the client or third person, the lawyer or law firm shall consider the following factors:
The lawyer or law firm shall review its IOLTA account at reasonable intervals to determine whether changed circumstances require further action with respect to the funds of any client or third person.
"Reasonable fees" as defined in (a)(5) may be deducted from interest or dividends on an IOLTA account provided that such charges or fees shall be calculated in accordance with an eligible institution's standard practice for non-IOLTA customers. No other fees or charges shall be assessed against the interest on an IOLTA account, but rather shall be the responsibility of, and may be charged to, the lawyer or law firm maintaining the IOLTA account. Fees or charges in excess of the interest or dividend earned on the account for any month shall not be taken from interest or dividends earned on other IOLTA accounts or from the principal of the account. Eligible institutions may elect to waive any or all fees on IOLTA accounts.
S.C. App. Ct. R. 412