The other 75% of the skills required to be a good developer will have to be learned elsewhere (a good mentor is the best way).These include everything from Zoning/Subdivision/Land Issues to Environmental Issues to Permitting Nuances to Design Issues, plus all the differences in financial analysis.

I am considering $300 night rate with 60% occupancy which translates to $65k revenue per year from each A-frameAfter considering expenses $50k for each A-frame or $100k for 2 frames.I have some questions about this strategy:Did you try to get STR permit/construction permits in this area?

Some folks told me that I should try to get everything permitted, but now the city is trying to shut the entire thing down saying only single family is allowed in this city.

There's still limited inventory (~1 month supply) and limited new permits.

At a minimum, the lease needs to state that only SHE is the tenant and no other occupants are permitted without permission.

Everything was permitted correctly and done by the book. 

I would speak to an architect and permit department to see if its buildable 

Basically, this will make it difficult to get an STR permit if you are no5 already operating the unit as an STR.  

How easy/hard to get permits and timelines?

We have in a hand the permit to build a 3/2 1100 SF home in backyard.