@Bryson Ragsdale search "house hacking biggerpockets" in spotify or the Podcast app and that should bring up the ones that talk about house hacking!

Looking to talk to someone who’s had experience adding a bonus room/sunroom in San Diego.

. - I was in a VERY similar situation here in Chicago, but I had less experience working on my own than you.I had a piece of land that I owned free and clear, but since I didn't have any development experience, most of the banks wouldn't talk to me. 

I might suggest getting your own appraisal where you select the appraiser that knows your situation and you can talk to and discuss their approach.

in columbus ohio we have to put the value of new builds and the cost of construction if you average enough or look at enough you don't need to talk to anyone. find the city website and do some research first 

Some agents do this well, some without a license do it even better.Having a license to serve other clients first and help you conduct your own transactions second is how I would look at it.When analyzing deals I will prioritize sharing with investor clients first and only pursue it for myself if none of them want to purchase it.Happy to talk more as you pursue all of this!

He uses Mojo and can call several people at once, and if they pick up, he talks to them, or it leaves an automatic VM. 

Talk to Mid South Home Rentals (division of Enterprise Realtors, Arlington,Tn) before you signup with quoted company.Best,Mike

(To clarify, the metric I'm talking about isn't true cash-on-cash or cap rate, under strict definitions.

Happy to meet for lunch sometime and talk about how we can help each other!