I hope we avoid any issues like those!

At this point, any issues should be external. 

My expectation is they know they will run into the same issue with another buyer.

Statue of limitations and waiver issue so if the LL can collect it will limited to a set time.

Any time I've had a concern or an issue it's difficult to get help it seems a host has to jump through hoops.

Whether I purchase it cash or with conventional financing, the banks only want to lend/refinance up to a specific LTV (usually 70-75%) on the purchase price EVEN if I buy the property at a significant discount (e.g. 50% of its current market value).In the past I've always struggled with this same issue, and thus eventually I end up tying all my capital in properties and I'm unable to purchase more (even hard money lenders want you to put some skin in the game).

I've experienced some of the same issues with cash flow in SFH's which is why i went to the MFH market, but it is doable as i've seen people do it. 

The IRS has issued letters stating vacation property is not eligible for 1031 exchange. 

The one salient issue that you brought up is economies of scale. 

I spoke to another bank who said that going the FHA route brings all kinds of headaches  that aren't worth it and if I can come up with another 1.5% going conventional at 5% would be much better with less build restrictions although my builder said they are technically an FHA approved builder whatever that means.One Bank told me that I'd be better off going the hard money approach and putting 10% down for new construction but I always felt hard money is such a rate rip off.If any of you guys have any helpful financing solutions please let me know.My other issue is that in order to build one of these I'd like it to be in an area that is cool..location location location but a.