Jason I don't think there is a simple answer to whether to include your spouse or not.
in NJ my CPA told me that if I have more than 2 people as members of the LLC that it costs $150 per person to file per year I believe, but if you have only 2 then it is $125 total.
I am one member and at first a husband and wife were going to be the 2nd and 3rd members.
Since they file their taxes together, tax wise it doesn't affect them if only one person is on the LLC both still get the benefit the way I understood it. So we just had the wife sign as a member of the llc because she is the one who does the accounting and check writing.
The husband however now can't sign anything for the llc etc..
Consult with your REAL ESTATE EXPERIENCED attorney & CPA and explain exactly what you are trying to accomplish with your business structure. They should have a much better answer for you.
If you don't know of any find your local REIA's and ask around to see who everyone is using.
J scott has some good interview questions to ask your CPA on his blog 123flip