Is it safer?

Any recommendations in Boston area for flip?

Local banks who don't re-sell these are typically your best bet, they like relationships.  

I'd like to sell one of my rentals and put the proceeds into stocks instead, but if the tax hit is too high, I'd do a 1031 exchange.  

As soon as the house is built, I want to start a new build on this lot to sell as a spec house, budgeting approx $450k build cost, sale price is estimated $750k, supported by comps.

If you are very clear that you're selling the contract, a couple photos would be ok, then after you get somebody interested, can get more in detail.

. - Contractors- Capital providers: JV partners, private money lenders (PMLs), hard money lenders (HMLs)sFor additional context, are you going to be flipping and actually selling or are you going to be fixing and holding for rental income? 

We have a few builders that we work with on new construction for SFR that once completed you have the option to rent out or sell at a retail value as a build-to-flip option.

Sell the land as a first step in cleaning up your balance sheet.2.

So unlikely they will have a beef with you for the county selling their property.This is just my personal experience.