My goal is to become a long-term rental investor, but I would like to start by doing a couple of fix and flip properties here in San Antonio.

You begin to acquire properties to hold for the long term, creating a steady flow of passive income.

I also suspect home prices would initially rise on the first 1-1.5% of cuts, but ultimately fall once we get to the 3-4% range as large  pre-pandemic supply comes back online, compounded by boomer land lords selling realizing the top of the market is in the rear view mirror (at least for them).If you eventually get squeezed on lower rents and valuations as the market normalizes, the ability to BRRR your pandemic era deals will be limited, so how do avoid trapping capital in the deals you already own from this environment? 

I'm not an attorney so please consult one in your state to make your decisions.You could propose they master lease the property as a trial period BEFORE you agree to purchase terms which would transfer title. 

Assignment is the legal term and is not limited to the length of time the property is owned or controlled by the assignee.

Land in michigan is less than in texas , north texas.I will give you examples on cost differences.Material prices are the exact same price if not a little less.texas framing price per sqft $2.00plumbing $9500hvac $9500concrete Labor only $2.00 per sqft  Concrete $180yd 5 sackdrywall $10500Electric $8000Ok here are the michigan prices , better sit down.framing $13.00 sqftplumbing $25,000hvac  $20,000concrete is about the same for materialdrywall $20000electric $25000Both quotes were for a 3/2/2 home with 6/12 roof hipPeople in michigan wonder why houses are so expensive , its because of the sub contractors.The plumber only has about $5000 worth of material to do a whole house but yet there still asking for $25000

I think evolve is another one but I think it's more geared towards Airbnbs vs long term rentals.Thanks!

How do I best figure out what is feasible in terms of clearance and its impact on the ADU construction?

It's like the head gasket on a car engine, the part is cheap, but the labor to disassemble everything and re-assemble is intensive. 

Usually, I rent my rooms for long-term rentals with a minimum 6-month lease.