Chinarose, it sleeps 9. It's in Govedartsi, about 20-30 mins drive out of Borovets in the Samokov direction. Available either self-catering or catered. If you'd like more information please email me.
Bansko is a appart-hotel resort. If you want a chalet you could rent a house in the old town. There are some houses you could renovate in the old town, not to mention the little huts on the long chalin valog. If you really want a long term investement theres a burnt out resturant just above shilli thats right on a piste.