But I have unloaded some dogs, that I did not want, that I still made a great profit on. 

Plus "the seller is willing to sell because he has multiple other properties that he's currently working on" - which means he is experienced in rehabbing properties and this one is just trouble he is looking to unload.

Hard woods are valueable and some more valueable than others. 7 acres is too small for any general mill that makes typical 2x4s but can be worth their time if you have furniture grade lumber.   

I was going to ask the building supply company & lumber yards I use to give referrals.

After finally evicting a tenant they've been trying to get rid of for the last two years, they want to unload the house and we're talking about selling it to me.The house is valued currently i think around $460k.

I’ll be unloading one of my investments up there in the coming month to wrap up something I have closer to my home location. 

Keep it in increments of 2' with even numbers. (10-12-14-16, etc) That way you wont have to cut a foot off of every piece of 16 foot lumber you buy.

I'm getting ready to unload two sfh flips in the next month or two, a 2/2 for 200 and a 3/2.5 for 250.

I would unload and take the loss. 

Maybe they know a particular home owner is in a real bind and needs to unload the house fast.