Ancient Liens and Mortgages
That is probably the worst advice I have ever read. Carnut, if you are living in California, there are statutes of limitations. Depending on the facts of your case, you have one of two situations:
1) The builder recorded a mechanic's lien against your property. A builder must file an action (in court) within 90 days of recordation (the document he recorded against your title at the county recorder's office) or the mechanic's lien is null and void. (Civ. Code section 3144.) (The builder can still sue you for breach of contract, depending on the underlying facts of that transaction.)
2) If you have an ancient mortgage recorded against your property, you actually probably have a deed of trust recorded against your property. California calls them mortgages, but they are really deeds of trust. Deeds of trust can be foreclosed judicially or they can be foreclosed nonjudicially. Judicial foreclosure of a deed of trust is generally governed by the 4 year statute of Code of Civil Procedure section 337. Although some mortgages have a perpetual waiver of the statute of limitations, this is curtailed by Code of Civil Procedure section 360.5, which will limit a waiver to four years after the time the statute would have expired.
3) Nonjudicial foreclosure is carried out through what is known as the "power of sale." At one time, before 1982, California case law had held that there was no period of limitations on the enforcement of a power of sale under a deed of trust. Carson Redevelopment Agency v. Adam (2nd Dist. 1982) 136 Cal. App. 3d 608.
This changed however, and there is now a period to exercise the power of sale in a deed of trust. In 1982, the California legislature enacted sections 882.020-882.040 of the Civil Code, which establish for the first time a statute of limitations on the exercise of a power of sale in a deed of trust. Miller v. Provost (1st Dist. 1994) 26 Cal. App. 4th 1703. This set of statutes has several provisions, one of which is a 10 year statute if the final maturity date is fixed and ascertainable from the record, but the 10 years runs from that date of the maturity. This may be the 10 years you were referring to.
Be careful who advises you in this matter. You need to seek out a professional lawyer who is experienced in real estate. This can be difficult, because most lawyers do not understand or have a firm grasp real estate law.