Additionally, we disregard DTI and base our approvals on your investing experience, credit-worthiness and the asset that you are buying.

I'd be curious to get your feedback on item#1---have you been told by a bank that they will fund (if a broker told you, disregard)?

It is difficult to figure out what is going on in your post.If I understand correctly: that you have a property management business (LLC 1) and you recently bought a commercial property under a separate LLC (LLC 2) and that you want a rental agreement between the two LLCs.Just make it arms-length and fair market to avoid problems.If both LLCs are disregarded for federal income tax purposes, the lease will also be disregarded and won't be respected for federal income tax purposes.If the management LLC is an S Corp, you'll have a self-rental situation that has unique passive activity loss rules.Your professional advisors can fill you in on the details.

As far as the IRS is concerned you are a disregarded entity and are treated like a sole proprietorship.

Note that this is not co-mingling funds - it is just gifting an asset to an entity, which brings into question whether the entity (the LLC) has any separate existance from you the individual owner.3) A single member LLC is more susceptible to veil piercing.Please note - I am not disregarding the use of an LLC (even a single member LLC) for owning rental property.

Good question, I know :)No--that wasn't a "good question"-it was a question disregarding major points in the statute-points which you don't want to accept to justify actions in violation of FL law. 

I'd disregard any suggestions for a favorite appraiser and just choose with my own discretion.

Please disregard above post.

I do not have the case law to back this up, but I have heard that many times in the event of a lawsuit a single member LLC can be penetrated easily as it is seen as a disregarded pass through entity.

If you're in a community property state an LLC with only yourself and your wife can still be disregarded for tax purposes and file directly on your 1040.