Figure that arrangement out (hmm.... with your favourite agent) and you can be state that upfront when other agents bring you deals. 

Your funding needs to be pre-arranged before you go under contract.

We would not be able to live in a duplex based on our living arrangements.

He deals primarily in property management, so it wouldn't make sense for him to, I guess, enable the competition.Any advice or direction on a broker who might be open to an arrangement like this?

I saw a lot of people get in trouble with arrangements like what you are discussing above after 2008 - when the market corrected.  

If he is experienced, I would certainly wonder why he would be ok with 50% split.A lot of investors with this type arrangement pay each party’s money back first, then split the profits on a sliding scale with the party doing all the other tasks retaining a higher split than the other silent partner.

It'll be more labor intensive especially if you are arranging meetings and providing value with masterminds.

Step One: I pay seller an agreed upon down payment (or do no-money down, if agreeable).Step Two:  Record the promissory note that details arrangement for this seller-assist sale/purchase. 

Things you never thought of you will be contemplating Ex.

This is my first post.I am contemplating turning my renovated historic downtown rowhouse into a mid term (30+ days) rental while I am out of the country for a couple of years.