Any intervention has to take account of a range of evidence and other factors, to very carefully balance the needs of social tenants with those of the wider sector.
Mae'n rhaid i unrhyw ymyrraeth ystyried ystod o dystiolaeth a ffactorau eraill, er mwyn cydbwyso'n ofalus iawn anghenion tenantiaid cymdeithasol â rhai'r sector ehangach.