We refinanced our house to increase cash flow, and that will close on July 2nd. 

You would just want to make sure when the lease is renewed that you increase the rent to at least cover their part of the water bill.

You will not increase cash flow by paying down a mortgage.

Once you have a full year with no transactions for the ebay business you can start making the ebay related chart of account categories inactive to hide them which will clean up the chart of accounts.So short answer is I believe it's possible to do everything under your existing LLC, however It increases your liability and is not going to be a very clean transition on your books. 

There are different thoughts on this, but some like to say just managing so they can blame th owner for rent increases, late fees, etc.  

You will be surprised how much a nice color scheme can increase the value of a SFR and the cost is not that high.Remember we are still in a sellers market...

If you were to purchase this property with 25% down, at the asking price, I think that you would be losing money for a few years until you can increase rents 20% ($1200-$1300 per unit).

A yearly rent increase is written into the Lease Option so the amount I get increases each yearf.

Can I increase the rent since its 2 extra people in my property?

Earlier this year, they successfully renegotiated the lease with an increase.