This deposit will let you know if buyer is serious about buying.

Are you trying to buy a property or wholesale and if either, is your money in order to be making these calls? 

I typically buy/sell in urban areas where there's a sewer system and public water, so I need resources/referrals for this situation. 

The Buyer has no skin in the gameIf someone is approaching you to buy your house without a mortgage or conventional financing and are tying you into a long-term contract they better have some sort of collateral that they're putting up.

I was able to buy a 4 unit for 75k through my credit union in Upstate NY

I always try to find a real estate agent just starting out and call and say can we meet for lunch or a cup of coffee, and then I never say what I need I say will it be ok if I refer investors or buyers, your way and my services is free but maybe one day you can help me or buy lunch.Joe Gore

As I am now focused more on cash and creative wholesales-SFR & Land, to eventually do fix and flips, buy n holds.

For the smell, buy an ozone machine off amazon (have the unit empty while it is running-same with upstairs if the airflow is connected).

You made the choice to buy a $35k property... that's incredibly cheap in today's market.