Meaning educating and providing resources is complimentary to his own investing. 

Does any one have any leads on lenders who provide loan for groundup constructions and the criteria?

Any lender should be able to easily do a HELOC for you (provided your credit is OK), but a local credit union will likely give you the best deal. 

There are too many factors to consider to just provide base rates for what you're asking. 

Contrary to most business lending, the REI industry has a lot of "non-bank" lenders that provide attractive loans that can lower your cost of capital and improve your profit/cash flow. 

In the future, I'd request a "soft pull" from a lender and provide them with your estimated credit score to get a rate quote.

What you want is an agent with experience who knows how to negotiate, watch your back, navigate difficult situations, understand contracts and law, provides an objective cross-check, etc.

We've sold 65+ homes and the biggest request we get from our Buyers is help with closing costs.Most of our deals we're providing anywhere between $5K-$10K to help Buyers offset the cash requirement to purchase a home.Even in today’s "high" interest rate environment, many Buyers prioritize closing cost assistance over an interest rate buydown.

I’m looking for a local mentor that I can learn from and provide value to so any suggestions on how to find one and pitch myself would be great as well!

Ensure the state provides a clear title upon sale.