Русско-англо-русский юридический словарь

As a general rule, mortgage companies will allow you to borrow three times your salary, or two and a half times your joint salaries if you're buying with someone else. (bbc.co.uk)

General rule is a rule that is applicable to a class of cases or circumstances. It can also be formal order or direction made by a court, as for governing the procedure of the court or a general norm mandating or guiding conduct or action in a given type of situation. (USLegal)

As a general rule, the losing party pays the costs of the winning party, but the court can order otherwise. (Wikipedia)

Security for costs is a common law legal concept of application only in costs jurisdictions, and is an order sought from a court in litigation. The general rule in costs jurisdiction is that "costs follow the event". In other words, the loser in legal proceedings must pay the legal costs of the successful party. Where a defendant has a reasonable apprehension that its legal costs will not be paid for by the plaintiff if the defendant is successful, the defendant can apply to the court for an order that the plaintiff provide security for costs. (Wikipedia)