I have I have an opportunity in front of me to begin my property Investment Portfolio.

I built my portfolio with the BRRR strategy before I knew it was called that.

Even in the best case scenario, the ROI does not justify the large capital investment and relative lack of liquidity as compared to my stock portfolio (where I have more knowledge & risk tolerance, even in volatile markets). 

Lenders will normally consider 75% of the fair market rent as your income for purposes of qualifying for the loan.An alternative to consider is a "portfolio loan" with a local lender like a credit union or community bank. 

Does anyone know of a lender that will lend on a condominium portfolio in Georgia in the low $1 million price range?

Yes I have a portfolio loan with a few multi family in it and some single family.

Once you get a nice portfolio built up you could leverage it or cash out and purchase something larger.We have 45 single family, a couple duplexes and 3 four plexes.

It's important to figure out what your business strategy is, and what your value-add proposition is.I know that folks have been successful in each one of these niches in Philly real estate, just depends on what you are looking to do (in no particular order and just off the top of my head, I'm sure that I'm leaving a bunch out): low-income rentals, luxury rentals, flips, vacant land speculation, new construction, section 8/PHA rentals, wholesaling, wholetailing, bird dogging, turn key sales, property management, construction management, financing expert, zoning expert, title expert, business procedure consulting, hard money lending, seller financing, buying subject-to, syndicating deals, 1031 exchange scout, retail sales, etc.Personally, I've set up a pretty decent rental portfolio over the last few years, that's what made sense for my investing goals and setup. 

We want to begin by flipping houses, but intend to create our own rental portfolio.

Ideally I would like to eventually get into using portfolio lenders, so a bank/credit union that does that is a bonus.