Again, if you are just renting, than having a LLC doesn't create any SE tax implications, by itself.

. $40,000 including closing cost) under my wife and my name since we will be living in 1 unit and rent the other unit out.

I have a weird situation going on.Tenant has been here 2 years, current on rent but a total mess.

With 3 bed renting for 1800-2000/month and 2 beds renting for 1400-1600/month this is going to be a cashflow monster bringing in over 5000/month!

Depending on the demographics of the area, I've found that Home Depot/Lowes is fine for just about anything going in a regular rental.One must consider return on investment and buying fancy custom cabinets won't yield much if any more rent that box store shaker cabinets, especially in a duplex.Get some decent cabinets and a good countertop and you should be good to go.

I'm not traveling to exotic locations on business. 

We bought a 3bed 1 bath for 125k with a rent of 1,100.

The barrier is the additional complexity - now you are operating two sets of books, and filing two tax returns, and have more operating agreements, more state registrations, etc, need to manage cash better, need to keep in constant mind that your rents need to be a supportable FMV, which may require getting third party certification on your rents so that in the event of an IRS audit, what you have done is supported.In short...the size of the project, and the taxable income, need to be of enough scope to make all the additional costs and annoyances worth it. 

Hi,I wanted to ask if there is a lock box (to put keys inside) that I can buy that doesn't require WIFI at the lock box location.

Are most renters snowbirds renting for 6-8 months?