Hi, I was wondering if there's any good reliable places to market tenant in place + management in place properties. 

This is what I am encountering, in the current Mortgage Industry.If you think you will go FHA, Conventional, FHA 203k, etc. and then Quit Claim the property, to a LLC, or a Land Trust you run the risk of the lender discovering a Title Transfer occurred and activating the "Acceleration Clause" or "Due on Sale Clause" that requires the loan to be paid in full, within 'x' number of days.

I was wondering if any real estate agents might have any advice or resources that I can use to begin my journey?

Look, we’d all like to search the internet, find a deal for sale, analyze the property as having a great cash flow at current interest rates, with lots of upside potential in a gentrifying market.  

you have to inspect BEFORE the sale. 

I also believe there is a small co-op in La Jolla but only infrequent sales so not good for estimating a discount.

II wonder if it would stand up in court that they could force you to use their contractual payment requirements on your own Private property.

Yes, it's true that you might be able to find a product you need at a greater discount when a brand like Wayfair or CB2 is having a sale, but I've found that they truly do offer superior discounts at scale, even considering the fee. 

They are two separate sales agreements. 

For those interested, a combination of mortgages with no “due on sale” clause, mortgage companies loose due diligence, and title insurers willingness to “turn a blind eye” to practices that wouldn’t pass scrutiny now, resulted in tactics like the “second mortgage crank” which not only allowed investors to purchase properties with no money out of pocket but allowed investors to actually walk away from closing with “cash in their pocket”.