In Texas, how much savings would one be looking at by having 3 LLC's in series structure vs 3 separate LLC's?

Prices will vary depending on your attorney. Think about it like this: 3 LLCS = 3 Filing Fees + attorney's time and rates for each one. In TX we don't have state taxes, but you still have to file "no taxes due" to appease the Taxman. Some lawyers will charge PER entity for that as well. Series LLC = 1 filing fee, and you can create as many "series" as you want for no additional cost. I can't tell you how all lawyers do it, but will use myself as an example of one way it saves money. My firm offers a flat rate for creating the entity and deeding property into the structure. Then, clients usually buy the first Series Document, and we actually encourage them to use it as a template for future series. We'll review it if they like, but the idea is to empower the investor to make their own Series Entities. Yes, you can ask us to review your docs to make sure it's all kosher or pay for more intensive management of the entity, but all of those services are flat fees. Other lawyers may do it differently, but I can't speak to their structures. Even if you paid an attorney to do this by the hour though, it takes far less time to create a Series than an entire new LLC.