Some have sealed batteries and some are replaceable.

So I recently moved back home to start building a spec home on one of my 3 lots.

I live in a smaller and older suburb of Fort Worth where I am less likely to get tracked down (I see evidence of work on properties all around me that are clearly not permitted or up to code), but also know that the specs on the house will change with the appraisal district once I get the property refinanced. 

504 loan would not fit for a 4 plex/spec development deal, as they are intended for owner occupied commercial space.

If I read it correctly, HUD specs don't require a closet in a bedroom.

Here are some thoughts:1) I would start talking with potential tenants in advance and look at doing the build out to their specs. 2) How long will the micro-brew fad last? 

Since we are building a spec house in San Clemente, CA, within a mile to the beach and Metrolink station, I was curious about the potential it would have as a VR (Vacation Rental) and pulled this off both VRBO and Airbnb for the summer months, and whether it would make sense for an investor.

Over the last few years we've done several rehabs in Austin and are currently working on a spec house. 

I'm a newbie investor haven't done a deal yet but ideally I'd like to focus on fix and flips until I've built a nice capital base and then shift to spec builds as well as rental properties.

It's a great feat of engineering, and Tesla is going about it the right way by building the infrastructure and battery technology to grow their business, but we're a long way off from them having a large marketshare.