First Time Investor At 18, Leveraging My Home Or Annuity?

[Drake Cole]

Hello, BP! I graduated High school only a couple of months ago. I have been wanting to become a real estate investor for the last four years (Since I was 14!). Which is around the time I discovered BiggerPockets. Since then I have read over 20 books, listened to over 200 podcast episodes and talked to a couple of local investors. I recently found a 4-plex for 359,000$ which I have been looking to buy. I have talked to the owner and told me he'd sell it for 335,000. 3 of the 4 units are rented currently. After all units are rented, it will bring in 3600 a month gross income. I estimate that the expenses should be around 900 a month (Not including the mortgage). I went to a local bank today and my only option is an in-house loan. I have a paid off house which I currently live in that would probably be worth around 400,000$ to 500,000$. I also have multiple annuities that would cover 100% of the purchase price. My father, who was also a real estate investor, left me this after his passing from cancer in 2017. This is my first post and I figured I would ask the BP community for their thoughts on which would be better. Your feedback would be great. Thank you BP.