I have 100K - New to investing. What should I do?

[Marimar Hernandez]

Hello,
I am brand new to investing. My husband and I bought our first house when we were 22; using my parents as co-signers.
Now, we are 25 and we have rented our 4 bedroom house and moved back with his parents to save some $$ in order to buy a condo in cash (the 4 bedroom house was too big for us; and far away from work). The tenants paid a full year of rent upfront.
Properties in the Bay Area are selling fast to all cash investors.

As of now, we have been able to save 100K but need it grow in order to buy our condo for cash.

What do you recomend? We do not have any investments as of right now.