His sister is the one acting as an agent for them and she assured me of his brother's identity. I checked the title with the RD, and everything is clean, including the updated real estate tax. I already paid them and the TCT was successfully transferred to my name.
My worry here is, is it possible that after successfully transferring my name on the TCT that someone might go after it after some years? I'm worried that since I haven't really met the husband and wife personally to see their faces on the ID's and passports, someone might go after it saying it's a fraud. That someone might be the real owners.