On the most romantic day of the year, the Law Society is warning Valentine Day promises could lose you the roof over your head.
It has drawn up a ten point list of the dos and don'ts of getting together with a supposed "the one".
Couples are advised to make sure both names are on deeds and rental agreements so homelessness does not follow break-up.
Lawyers also suggest insuring against an expensive wedding going wrong.
Those who are wealthy are advised to consider a pre-nuptial agreement, and those not planning to marry are warned they will not automatically inherit their partner's estate without a will.
Perhaps most coldly of all, amorous couples are told to remember that legally, an engagement ring cannot be claimed back in the event of a marriage not going ahead.
Law Society chief executive Janet Paraskeva said: "Very few people think twice about how their new status will affect their legal rights.
"It is important to get good quality legal advice so that both parties will be protected if things do go wrong."