Tax filings, remember, aren't that much more complicated since single member LLC's are disregarded by the IRS so everything goes on your 1040's. 

@Michael Hebron JrIf you have a single member LLC with no special tax election you can pay whatever you want with it as it is disregarded for IRS and it all come down on your personal tax return.Now from an asset protection point of view, by using your llc to pay for things that have nothing to do with your LLC you are de facto creating an alter ego and lost any protection by piercing its company veil.You need to treat your company as a business.

., since these entities are disregarded entities for tax purposes.  

@Louis BaselIf the llc is disregarded for tax purposes you should be able not to pay rent as it does not change anything tax wise.However on the liability side you are commingling the llc asset with yours and it will be a factor helping to pierce your company veil.It is often recommended treating each entity as a fully independent business and to document activity between your businesses with contract and payments.

If the property is currently under your personal name, moving it into your LLC should not have any tax consequences, because such LLCs are usually disregarded/ignored for tax purposes.

Are there any tax disadvantages to transferring rental properties to a single-member LLC with disregarded status?

Disregard question. turns out once inspector comes they give you option to speak to city official.

You’re disregarding privacy of your tenants big time.

Revoking an S election means that your LLC is now a C Corp for federal income tax purposes.To get back to disregarded entity, you must file an 8832 after revoking the S election, elect to be taxed as a DRE, and go through a corporate tax liquidation. 

It's difficult to unwind partnerships and S Corps an individual never should have gotten involved with, than it is to start as a SMLLC taxed as a disregarded entity and later add members or entities, or make an S election.