How to Place lien on property in the Philippines

I have monies owed and want to make sure I get paid from a possible sale of the house.

Is it on own land? Leased?
Is the land titled, has tax document or nothing?

You can try to get your name too on the documents.
If it's titled, then you have to be contacted to get it sold legaly, if someone try.
If it's on leased land, the lease better be NOTARISED with your name on it too.

Then a buyer have the chance you are involved too, so he get trouble to claim bought in good faight, so then you at least have that weapon if you have been runed over and you go to court about it.

In any case - if it's sold without giving you your share, you can go to court about it, but better if you can avoid that by take precoursions by add your name.  But if you are a close relative, so it's "obvious", then you have a rather strong case anyway, but extra important to get your name added, the more far related you are.

1)Do you have a document to evidence the indebtedness of your debtor?

2) What is your interest in the  real property in the Philippines? Are a co-owner, a buyer or a lessee?and do you have legal documents to support to prove it?

I am separated from the mother of my 3 children but built a family home for my ex and my children. I made has sign a 25 year lease giving me rights to the property and giving her and the family unrestricted access and accommodation but with the caveat she does not sell it. Withing the lease it says if she does try to sell it she has to pay me all the construction cost.

I am hearing she is going to try to sell it and it is constructed on 3 titled lots all in her name but also leased back to me. The lease were done through an attorney and have been notarized. I need to place liens on the property but not sure how. Any advice would be appreciated.