Compare what he will charge to build for you as a client and then bring up the partnership and see what the difference is.After that, run the numbers on what his townhomes across the street are selling for or what they expect to sell for.

@Joseph Waitkevich Would you mind sharing who this is (even in DM) so my team can steer clear of referring or future business with them?

Plenty of folks are making investments work in the valley, but you can't just buy a turnkey house on market, put 20-25% down and expect to cash flow well.

This is going to be a bigger and bigger issue for real estate investors in the near future. 

Also, the age of the mobile homes can limit your cash flow in the future.

Don't forget the price of the property has a lot to do with how much they rent for. they are directly relatedDon't expect to move to a different state with lower home prices and think you can grab everything up.

This would of course be a brand new lease at FMV - what to do about this broker's expectation that our Landlord is to pay a commission. 

We decided to fight the charges and file a case in small claims court (not knowing the future impact of a dinged credit).

They can help you to have realistic expectations on rent rates in the area, especially if you're planning on have a PM manage the property.

Ultimately you'll want to make sure you have a good financial foundation and once that is set in place, learn your market, learn what to expect, stick with what you know or have the ability to learn and then you'll have a MUCH clearer picture of what to use those extra funds for.