It's just gentrification process from baby boomers/old timer settler to the new tech generation. 

The result of 4 total units is the same as the lot split but it seems like it would be longer to go through the process of splitting the lot as opposed to just adding a primary SB9 unit which you can then add an ADU to.

I’ve done my best to research the process but wanted to get additional guidance.

In process of looking for new umbrella myself.  

2) How would I record this transaction on form 8824 and form 6252 (assuming those are the correct form to fill out)?

Are there any guidelines for situations like this where the tenants would need to stay somewhere else while the renovation is in process?

Thus the whole process costing you a few thousand more.  

A couple of months ago, I started the process on a HELOC and assembling a team in Sacramento to make this a reality. 

I will be able to cash out my original down payment + 30k more if I wanted to but as im going through the process I was wondering in the future if I pursue investing full time how do you still get approved for mortgages?

Your question makes me want to check my state rules (Illinois), because I've thought many times that I might as well manage other people's STRs if I have all the processes set up to manage mine anyway.Finding a cleaning crew for 1 STR is difficult, but 5 is easy.