With today’s technology, buying or selling a home should be a transparent and efficient process — all the way through the closing. To make it so, a Miami-based proptech startup set out to rethink and rebuild the entire experience. This week, that startup, Expetitle, announced it has raised $850,000 in seed funding. The digital title company, which started writing policies in Florida this year, is part of a growing proptech sector in South Florida.