For example, the time of year can be a factor, especially when you couple that with weather in the market. 45-60 days does sound high to me, but could be an indicator that either there aren't a lot of renters in that area or there is an over supply of rental properties for prospective tenants to choose from.

However, One thing to note about So Cal properties is the supply is finite especially in coastal urban areas.

While that is true about many new student apartments going up in Tally, the market isn't flooded with rental supply - I respectfully disagree and I think that's a simple way of looking at it.

I think this part is depending on the exact location and supply and demand.  

You need to supply tons of documentation with your offer, and highest bid dose not guarantee you get the house.  

Let lender supply documents that he wants executed and recorded.

I have a partner that I had some discussions with about supplying these units. 

I am using MF painting/cleaning, flooring and supply vendors on turns and they are very efficient, affordable and nothing like dealing with subcontractors.  

You're focusing on creating supply of wholesale deals.

Having the repairs approved and assessed should make the out going owner supply the money for repairs, however if they are only proposed and not accepted they will not be bound to pay for anything other then what is in your purchase agreement.