LLC to manage my properties. Do I need a contract between myself and my LLC?

[Sartaj G.]

HI All, 

We recently scaled up our rental portfolio from 1 to 10 homes. One is in my name and 9 are in my and my wife's name. Two are fully paid off, one is almost paid off, and rest have significant principals left on the mortgage. 

7 houses are currently rented and have lease contract with me and my wife. 6 renters are paying rent to us directly and a third party property management company is managing the 7th property. 3 houses are recently purchased and are listed for rent.

I have already created an LLC and opened a bank account in its name. I want to use this LLC as an operations/management LLC to manage my properties (all except one which has a third party property management).

Where I am stuck is that how I need to make transition from self to LLC for managing the properties. Few questions in my mind are:

1. Does me and my wife need to write a contract with the LLC (we both are the only members of the LLC) requesting the LLC to manage the houses going forward

2. Do I need to update the lease documents to change the contract from our names to the LLC name?

3. Should we make the transition now of wait it January 1st (to help with keeping the tax accounting clear?

4. Should I start paying the mortgages from the new LLC for draw money out to the members and pay mortgage from our accounts?

I will really appreciate if you can provide any guidance on the above questions and any other pointers. I have read a number of previous posts but I am still not clear on the actual steps. 

Thanks a lot in advance.