Answer
Yes. Under Article 494 of the Civil Code, no co-owner is obliged to remain in the co-ownership, and each may demand partition of the common thing at any time. The right to demand partition is generally imprescriptible for as long as the co-ownership subsists and has not been clearly and validly repudiated. Partition may be made extrajudicially by agreement of the co-owners, or judicially under Rule 69 of the Rules of Court; if the property is essentially indivisible, it may be sold and the proceeds distributed among the co-owners.
When a co-owner sells his undivided share to a third person, the other co-owners have a right of legal redemption under Articles 1620 to 1623 — they may be subrogated to the buyer's rights by reimbursing him — exercisable within thirty days from written notice of the sale.
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