I am about to start doing freelance work in real estate/home photography and since it involves me entering someone's home, I would like to be protected in cases of damages/risks of being accused of theft. Could someone please point me in the right direction of the kind of bonding/insurance I would require?

Your current insurance agent (for your home or car or both) is the best place to start. Tell them what you've told us and they'll give you a quote.

Get the quote and then call 2 other local insurance companies for a price comparison.