Another tech expansion in Austin with the largest single office lease on record for Austin, TX.California-based Meta Platforms Inc. — the parent company of Facebook — recently leased the entire commercial half of Sixt...

Depending on your area and how you have the space setup you could also target traveling professionals through Furnished finder.

Does anyone have a referral to a rock star in this lending space?

You may need to begin networking with brokers in the multi-family space. 

We have a 500 sqft (walkable and above ground) crawlspace that the city says we can convert to an ADU/MIL, we have been quoted 70-90k for the build out with a GC (not including city planner or architect).

Also added covered outdoor entertaining space.

When I had a pest control expert come out to look under my primary residence, I crawled under there with him to look for fungus/mold, termites/ants, and water issues - I learned more doing that and listening to him than I ever have watching Youtube videos or reading forums.If you have structural specific questions regarding conventional residential framing, wood/masonry/brick/concrete construction, or just general questions regarding the integrity of a property, shoot me a direct message.

.- $26,856  -Annual Mortgage Payment (only P & I) - $28,210 Annual Expenses (Property Tax, Insurance, HOA, PMI, and Utilities) - $17,922 Annual Total Cost (Mortgage+Expenses) - $46,132 Revenue (at $900 per bedroom and 4 roomates) - $40,694Total Cost Per Month for Me to Live Here - $5,438 -Loan Principle Paydown - $10,378Total Return (Cash Flow + Amortization) -  $4940 Total ROI (Cash Flow + Amortization) - 18.39% If I decide to only have 3 roomates (possibly taking the master suite on the third floor and the ground floor) then I'd end with only $30,521 in annual revenue (however it would ensure no parking issues since all people living have a space).

I want to start in single family residential rental space, the strategies I intend to implement are house hacking and the brrrr method for a good amount of deals.

Just enter the space with the expectation that you'll need a well defined plan, clearly laid out budgets, and that some money will need to be used.