I am new to investing, have done a few flips in the last 12 months, but want to eventually start building out my portfolio. 

HOA fees in many of the downtown buildings really limit the potential for a solid ROI.

You build a solid reputation as a deal closer, vs someone who bails when their portion of the deal doesn't work out. 

Goals and HopesI want to build a solid real estate portfolio for financial security and freedom more me and my family .

Tax Benefits - Can deduct most of my mortgage interest while building wealth.4.

What are some good things to be looking for and thinking about for a prospective buyer who is walking the grounds of a 47 unit building?

This way you can learn what it takes to be a landlord, produce extra income that can be put towards your mortgage, and build equity.  

and will build appreciation and equity (via tenant paying your mortgage) until you sell.Selling in 2-3 years for 121 Tax Exclusion is probably best, though.Anything else will depend on your investment goals. 

It would be installed in the middle of the porch, as circled in the below photo.Per my handyman, "All materials and labor to build deck section and install hot tub supplied by you including water, drain and electric hook up.

suggest you start with Dave Ramsey principals ... then move out from there.there is some big huge fallacy  that Real estate is going to let you quit your job and your going to have all this time for the kiddos etc.this will never happen in the short term with rental property.. you build a nice base for retirement in 30 plus years for sure.. but for short term replace your income and have all this free time you need to make transactional income with big hits.. your not going to get their with 200 to 300 a month cash flow on a levered up rental .