As I don't have large down payment, I am thinking to start building a portfolio with finding off market deals that have equity and do bit rehab/renovate and later get refinanace to pay off HML with a traditional lender/DSCR loan. please share any thoughts on my plan and any lending resources.

All the properties were purchased site unseen on their recommendation & has been spot on .   

We lived in a job site, full of dust, walking around in flip flops as we slowly renovated our house room by room over the course of 2-3 years.

Sites such as these can help but do due diligencehttps://www.cohostmarket.com/cohost_show/9668

You didn't share company name?

Look for beginner-friendly courses to build your knowledge base.Networking and Mentorship:Join Real Estate Forums: Engage with online communities such as BiggerPockets, where you can ask questions, share experiences, and learn from seasoned investors.Attend Local Meetups: Look for real estate investment clubs or meetups in your area.

Thank you very much for sharing this

I'd be happy to share a map with you. 

What has the HOA shared about the humming sound? 

Here's the link --> "Justice for Renters Act" Happy to share my experiences.