However, in addition to the new tax, the new rules are very restrictive on those that were following the model of renting out multiple bedrooms in their homes as the number of rentals on a property is now capped based on zoning. 

You just have to build that into the cost models because those expenses will come.  

Many people use many different models to gauge what a good deal is.

No small freelancing tasks, but rather creating streams of income, solid business models, that can grow in the future.I am thinking of a marketing firm, developing apps, becoming a property manager, being a teacher on the weekends.Any feedback is great!

I hope you find BP a nice place to contribute to .I am sure many could use your expertise

We have a business model and plan in place.

Maybe it will benefit others:https://www.homedepot.com/p/Kwikset-660-Series-Sat...I see the benefit in it (I guess) but if you lose the original key with this model then you are out of luck.

I'm looking for any expertise out there who can provide some info!

I'm personally curious about how folks are doing that are building out this model. 

Please for anyone out there who has the experience and expertise to give me an idea or direction to go with my current situation.