I am charging a slight premium over the list price of the house to lock in the price 2 years in the future and giving him 3 options to pay the fee for the option to buy.Option 1: 3.5% Payment for the option to purchase the property within the next 2 years.

He said that he did NOT have it listed yet because Fannie Mae (the owner) was remodeling it before listing. 

Typically, other turnkey providers have their list of preferred companies but Martel turnkey sends out the email intro for you - which was one less thing off my plate as an investor.Before I got in contact with Antoine there was a property I wanted to buy on his website but it had been listed as “sold” on the day I was scheduled to speak with him.

What price or what terms would make the difference and offer what actually make sense not their listing price. 

Vacancies are down to almost nothing and we are starting to accumulate a wait list. 

Are their listings detailed with good-quality photos?

B grade property walks are attended by my children to run around and tell me which bedrooms they would pick if it was their home.43605, 43608, 43609 are the popular zipcodes for bottom-budget value purchases...I manage a ton in these areas and my personal portfolio contained over 40 43608 properties at the peak. 20% of these properties will be crazy money earners, 20% will be astounding money pits, and 60% will fare average.I have evolved into the nicer 43612/43613 for my personal portfolio and find the properties earn consistently and far smoother than my 43608 houses. ($80k renting for $1200 vs $40k renting for $800 multiplied by the ratio above vs boring consistency of the nicer area) Oh and I have zero excitement for apartments.

"The bidding starts at <60% FMV>"4) After you get some bids on Sunday and the open house is over, you start going through the bidder list and calling everyone bu the highest bidder offering them to outbid the highest bidder.5) You repeat step #4 until you bid up the price as high as you can.6) Meet with highest bidder and take a non-refundable deposit (specify this as a "condition" of the bid auction). 7) Close.The idea here is if the highest bidder flakes out, you still have a list of other bidders, everyone just $500 or so lower than the highest bidder.

Saw one property listed in Dallas that looks like a match to your property (3/1, 2900 ft2) . . . is that the one you are looking at? 

The fact is that you have a list of requirements for renting from you, that you present to each applicant and marriage status is not on that list, supports your argument.