But, here’s a situation in which having my properties in SEPARATE series of an LLC saved me enormous time, aggravation and money.in 2012 I purchased 5 individual high rise condos in different buildings in Phoenix, AZ.  

Operating an LTR is quite different from managing a short-term rental , so I'd recommend focusing on mastering one strategy before expanding your portfolio.

The current use of the property as a two-family dwelling significantly impacts its value and marketability, which is distinct from single-family homes.The initial appraisal comparing your property to single-family homes is likely an oversight, as multifamily properties are evaluated differently due to factors like rental income potential and investor interest.

I'm trying to look for a course on how to better understand valuations and also tax liens in different states, so as to form better & tax efficient structures under which to invest in different states. 

I'm just thinking of the different scenarios I may encounter once it's actually time to purchase these investment properties.

I'm currently researching the market, trying to get an understanding as to where these different areas are located in the cities.Any indication is welcome!

I want to be in wildly different position in 5 years with my wealth and investment income. 

This can easily happen when the person valuing the property does not account for differences in the subject property and those chosen as comparables.   

Buying a home is the bay area retirement planYes, there are a lot details and differences for everyone's particular situation.

When I purchased my first large apartment building my real estate broker called 18 different banks until we found one that gave me the loan and I saved more than $20,000 by dealing directly with the bank and no loan broker.Then, as time went by, I got lazy and found what I thought was a terrific broker.