(And of course, there's always BP.)In The Millionaire Real Estate Investor, Gary Keller writes that it's far better to walk away from a good deal than to find yourself stuck with a bad one.

I'm in the Home Depot Seeds program -- they send me stuff for free and I write reviews on it.

There's nothing illegal with writing your own contract.

My first partnership went to crap, mostly because we had nothing in writing. 

Recently I did some looking into Property Manager software to include reading the many posts on BP forums. 

Then "Can we get an agreement in writing today to get things started?"

@Christine Krizenesky I see it is your first post welcome to BP.Presuming  the LLC is taxed as a disregarded entity or a partnership, you simply write yourself a  check.

So when someone writes a check to your new business name, the bank is not going to let you deposit that check into your existing business account (unless it’s a dba or something).

What type of documenatation do I need to prove this for write off purposes?

You can write N/A if they aren't applicable.