Just started on Bigger Pockets-Investing Question-BRRRR

[Hogan Underhill]

Here is my situation: I am only 25 years old. I bought my first house (townhouse) in January of 2021. The cost of that house was 252k. I used a conventional loan to finance the loan while only putting 3% down. The interest rate on the loan was 2.62%. I rented that property out to 4 people. Now I am looking to buy another property. I don't have much in cash to finance my next property. My mentor suggested that I use a line of credit because financing would not be the smartest because I already got a low rate. I want to attempt the BRRRR strategy with this next property. Would anyone have advice on how to finance this and any advice on my situation.