Hi @Erica Pelfrey, congratulations, it sounds like you are off to a good start. As an entrepreneur it is your job to take on risk in order to generate returns. You have clearly highlighted that you are aware of the risks that you are taking and this is more than half the battle, the easier part is to define the actions required to mitigate or manage the risks. Here is a high level breakdown of two of the risks that you are carrying
1) Liquidity - you are only as liquid as the reserves that you are carrying (which includes whatever is left in your heloc) so make sure that you have enough to cover unforeseen scenarios, personal and business
2) Business Risk - as an owner of real estate some of the main risks that you carry are vacancies or non-paying tenants, lower than expected rents (negative cashflow), unforeseen expenses (repairs and maintenance)
I would argue that both of these are higher when you are operating at a smaller scale e.g. if you had a fire at your triplex then 60% of your portfolio would be non-performing. Continuing to scale will make you better at what you do, generate more cashflow, diversify your risk away from any one particular asset and repetition is the path to mastery.
Don't forget that it is possible to scale with other people's money so get out there and broadcast what you are doing since you may find that there are people in your network who would love to invest. Good luck!