I can recommend some REI education to help you; however, forum rules prohibit me saying anything further here.Without your own financial resources, you'll want to work on establishing relationships with possible partners thru networking and other social contacts.

Further, every neighbor knows STRs are prohibited and I've seen many people mention their neighbors have turned them in.

BP forums strictly prohibit advertising so I won't engage in promoting my biz here.

Anyone selling one is selling a credit report , which would be prohibited by state and federal law. 

I doubt there is much AirBnB play there as most of the surrounding neighborhoods have strict HOAs that probably prohibit STR in addition to cities that are likely not STR friendly.

Am i obligated to do the modification to the house when it is so cost prohibitive and likely wont be able to recover the cost based on the rent I am getting. 

Bill Bill,I hate to be the bearer of bad news, but the LA eviction moratorium prohibits all no-fault evictions.

Construction costs and land costs are pretty prohibitive. 

Smartkey landlord locks are expensive to install (the landlord version has a master control key for landlord maintenance and a tenant key which can be easily re-keyed between tenants or for lost keys); I explain the system to every tenant at move-in and my lease prohibits the changing of smart key locks.

The plus side to the rental model is that if they change the laws to prohibit STR at least you don't own the house and mortgage long term.I got my VRBO up and running for pretty inexpensively by finding good used furniture and then replacing it with profits once I was up and running.I am also getting much more than 3k a month as my lake house rents for top dollar and VRBO connects me with the people that can afford to pay and stay at a nice Lake front house for their vacation.