Hi Steven,
Thank you for your question!
In a broad reply to your post - this decision will ultimately be driven by your risk appetite, so there is no right or wrong here necessarily. In investor relations and the world of capital raising, there is an NBA player who is young and has just come into considerable wealth and wants to invest, and there is the teacher who has worked 30 years on a decent salary and is looking to invest retirement money. Both are potential investors, with presumably different risk appetites (high risk/high reward, low risk/low reward). In this scenario, perhaps you may ask yourself, "where is my risk tolerance on this spectrum?"
In conservative fashion - I recommend analyzing comparables in the area to help inform your decision (similar 4-plex, nearby or same neighborhood, similar condition, etc.). Assuming there is no rent control here, it may be appropriate to increase rents as quickly as the law permits after close. It is a 4-unit property, so it would be good to perform your underwriting of the deal before you provide a letter of intent, etc. This underwriting can provide you a glimpse of KPIs, and help better inform your investment strategy in your market.
I encourage you, most importantly again, to take inventory of your personal risk appetite, and then make your capital allocations accordingly.
Please feel at liberty to reach out to me directly should you want to continue the conversation. Happy to connect!
All the best,
Daniel Reyes