I am worried about the low monthly cash flow, but understand this will grow over the years. 

Hey Johanna,Congrats on the growing family and on making it 5 years with your duplex!

What methods of fianncing have you been usuing to grow your portfolio?

I'm here to grow, learn, and connect with you all, especially if you are in the San Diego area, please feel free to contact me anytime.

My goal is to learn from the community, grow a network and take the first steps to build a portfolio. 

You’ll learn about tenant relationships, property management, and the overall real estate process, which will be invaluable as you grow your investment portfolio.Market Research: Since you’re in Long Island, do some research on the local rental market.

Lots of great experienced PMLs there - both passive ones that do it as a side hustle and small to medium sized PML business owners like me who started out with my own capital and grow over the past decade to have nearly 100 investors.

Make sure your mindset is ready, think and grow rich is a great book.

Does anyone has a seasoned property manager they would recommend as I enter and hopefully grow on that area?   

One of the largest growing buyer pool demographics is unrelated/unmarried "couples" (that are not dating).