Just back in March we were at 19,000 versus today 29,000. 

Regular ADU (versus JADU) do not have an Owner Occupancy (OO) requirement by state law. 

What are the pros and cons of buying multiple rental properties in a single package deal, versus buying them one at a time?

Much better to form the relationship on the right alignment versus find out midway, values or motivations don't align.The returns and deals can be structured any which way.

You can do the same as the big box stores, but I prefer the local hardware store where I can talk to someone versus a list of business cards.  

As a newbie, we plan to start a real estate with flipping houses for a start and want to know if LLC will be a better choice in terms of saving on taxes versus corporation.

Consult your lawyer.I'm no law expert, but I would wager that you waived your rights to evict for non-payment of deposit when you failed to collect the deposit for 6 months. 

I would suggest doing a cost benefit analysis between investing $200,000 in houses, versus the Mobile Homes.  

The housing department sets the section 8 rents in every neighborhood in the city, and for whatever reason the rent in say Kingman Park on a 5 BR is $5500 versus $4000 or so as market rate. 

Side note, another credit calculation is the ratio of the amount of credit available to you versus your usage.