Link for growing hibiscus indoor. http://www.guide-to-houseplants.com/growing-hibiscus.html

Maybe a braided tropical hibiscus (Hibiscus rosa sinensis) (?). Not able to see these in person, I can’t tell why the leaves are turning yellow. If these are tropical hibiscus, check out these included links for the growing culture & the causes of yellowing leaves. Best wishes! https://twitter.com/plantstandaz/status/334747760219799552

The tree may be deciduous so the yellowing may be a natural part of its seasonal cycle. Since it appears to have serrated heart shaped leaves. It may be a Tilia spp. common name: Linden or Basswood

No, itÕs in the exact spot that the previous owner left it. I can move it to a different place with more lighting.

Have you moved it to a new spot? Leaf drop like this is usually associated with too little light