I see from reading more on this forum that it's probably not a huge deal as asbestos flooring is the least dangerous, unless sanded. If anyone can confirm, that'd be great.

That's correct, and thanks for searching the forums. Once we had two asbestos questions in rapid succession. When I suggested the person search the forum I got the digital equivalent of the stink eye!

As you've likely read, unless the asbestos is friable, it's not particularly hazardous to remove. Being wet could help in two ways. It would potentially make the floor easier to get up and minimize the release of dust into the air. Six months later it's rather unlikely that there would be any residual.

I'm a retired floorman for over 40 years experience and went to a union school to learn the trade. Installers were told to take up asbestos tile and sheet vinyl with asbestos back years ago because they did not know of any danger so I sanded it down with a drum sander or took up 9 x 9 tile but in the 80's we were told it was dangerous so by law we could not do it. Wetting it down is part of the process to remove with masks and proper disposal. As far as danger in your house even if the tile glue which is black cut back had asbestos in it, if overlay-ed with plywood and new flooring is okay because it is then concealed and there is no harm to you. Years ago FHA required asbestos had to be used because it was fire retardant would not burn but melt. I sanded it for years and still not developed Mesothelioma Cancer.

Thank you both! I'm still not sure if I want to take our 8 and 7 yr olds there, but I feel better about going there myself, and having our relative live there herself for the foreseeable future.

Why would you deny your elderly relative seeing your children because of an almost non existent chance there is now asbestos dust in the house? Do your kids walk around in a plastic bubble too? I believe in being cautious, but not to the point that the emotional harm is worse than the supposed physical harm.