Quick takeaways to avoid this pain in the future:(A) Add strict language to your lease regarding unauthorized occupants, such as:6.

Cost per month should be fairly low if it is t being used    I keep the A/C running to avoid mold 

YES Yes  I know ask an accountant It’s Saturday I don’t want to wait until Monday 😀So could a corporation flip houses reinvesting profits into the next flip to temporarily avoid income tax instead of having to 1031?

Thats something you probably knew but focusing on that instead of the end game might help you avoid analysis paralysis.  

Would it be possible to 1031 the proceeds of all lots but one, and keep the proceeds of the last lot to help cover the development expenses, and then to avoid capital gains taxes on the money from the last lot, deduct all or some of the development costs from it?  

Would it be possible to 1031 the proceeds of all lots but one, and keep the proceeds of the last lot to help cover the development expenses, and then to avoid capital gains taxes on the money from the last lot, deduct all or some of the development costs from it?

Would it be possible to 1031 the proceeds of all lots but one, and keep the proceeds of the last lot to help cover the development expenses, and then to avoid capital gains taxes on the money from the last lot, deduct all or some of the development costs from it?

Any advice or mistakes I should try to avoid, let me know.

The next major problem with LLC's for real estate is; when a property is owned by you and does not belong to an LLC, then you qualify to transfer or gift properties to relatives and avoid paying capital gains taxes at the time of the transfer.

1031 into a 2 to 4 multifamily close to you and avoid paying gains..