Single family home next?

[Steve Totino]

Hi I'm 28 years old and single. I have about 100k in stocks (retirement s&p) and I bought a 2 family house in May 2019 for 535k put down 20%, 30 year. I'm living in one unit, renting out the other, and renting out the garage. I pay about 750 towards the mortgage to live there after my renters pay me (with taxes, insurance, etc included.)

I was thinking about saving for another real estate property but I'm not sure what direction I should go towards. Condo? Another Multi? Single Family Home? Something out of state? I'm trying to think of the future and I was thinking maybe getting single family now, renting it out. Then maybe if I have kids one day moving in there later on. Not sure what turns my life will make.