Definitely a less stressful way to do it the way you're describing, but I would say that 0 down time is a pretty ordinary procedure / SOP, unless a unit is getting significant renovations.

Not sure if that is allowed or what the procedure looks like. 

That means making repairs in a reasonable time period - given the circumstances and the nature of the repair.

It may play out well for you, but the details are tricky, and the adjustment procedure is complicated.

Is that reasonable given the nature of the prop?

There are also a lot of benefits surrounding sustainability with those tiny houses and Colorado loves the environment and preserving natural resources.  

These types of loans are available to simply acquire the property and are short term in nature (6-24 months).

These tenants are on a joint several lease, and it's not obvious whether joint tenants can violate each other's legal right to quiet enjoyment given the unified nature of their rights and responsibilities. 

This process is quite specific and must be adhered to with strict guidelines, including timelines and the nature of the property being purchased.Another method is the lazy 1031 exchange which is banking passive losses on your 8582 FORM from depreciation on other parts of your grouped portfolio such as several other real estate syndications.

The illiquid nature of real estate investing means a slow sale at high cost.