My main concern is the interest rates being so high now as to whether what I'm hoping to achieve is really even possible. 

My main goal is it be able to retire at age 40 from my main job and work entirely on my real estate portfolio.

That pragmatism will help you mitigate risks as you understand the different components of managing rentals   

I have seen some offers from Main Street come through, which is one of the biggest hedge fund type buyers.I've seen offers from Offer Pad and Opendoor in the last few weeks as well.

But most of these bridge loans have future funding components where the lender will fund renovation work as the work is completed and add that to the loan balance. 

Quote from @Brian Clark: Looking to network in Southern Maine to learn and share about long term rental properties. 

We prioritizes keeping waste out of landfills but its necessary part of the job many times.We also have a pretty active and informative youtube channel @greenbuildingnetwork and on instagram @phillygreenbuilding if you'd like to connect with us thereAt the time of writing this we're rehabbing the mixed use space in a Philly suburb on the Main Line for ours portfolio, rehabbing a single family home in the Rittenhouse area of Philly for a client, and acquiring a 30 acre plot of land with a barn and single family structure in upstate New York as part of our portfolio.Right now we are a finely tuned machine but we see opportunity!

I mainly bought it for the land, do not intend to rent it out for cash flow or what not.It is currently occupied by the previous owner.

Most (virtually all) are giving values below the main ppsf. 

I mainly am curious how people have raised capital for their first properties.