TAFDC: exclusion of teen parent's baby from assistance unit of teen parent's mother (so the baby can keep child support); FS: mortgage payments beyond what is required are not deductible; TAFDC: recipient living in development with federal subsidy entitle to rent allowance if no Section 8 or MRVP in use; TAFDC: ineligible immigrants with children on TAFDC and proration of shelter costs (none if parent has no  income).