The current tenants leave empty beer bottles in the yard, leave toys outside, and store items like folding tables propped up against the exterior.

We always give special treatment to them, as in a bottle of wine, maybe some delicious food, flowers, etc.

Pour a bottle of wolf/fox urine around the perimeter.

Currently he keeps complaining about being able to see their clothes hanging in the window (telling me to tell the tenants to keep the blinds shut) and empty beer bottles on the deck occasionally.

Then maybe say you will rent for the lower price for 3 months to let them get settled in, then the rent goes up to $2000 and they should get a part time job, recycle bottles, whatever to earn the increased amount.5. 

I’m thinking a nice bottle or couple bottles of wine wouldn’t hurt?

To be honest I'd love to get some of you down in the dark strapped to a board and me with a washcloth and a water bottle, and a recorder running to catch all the begging once you really figure out the limits of your toughness.Maybe a knitting needle and a propane torch so the recorder could really catch your minds breaking.

They should forego that extra bottle of mad dog booze a few packs of smokes those mega millions tickets for a week , just so they can buy me a gift card at my favorite restaurant and I can take my wife out for a nice meal 

I poured a few bottles of Dawn dish detergent over the next 12 months and watered it in until grass finally began to grow back.I did all the work myself (except the new 200 Amp service) over a fourteen month period, including painting inside and outside.

If would suggest finding a contractor familiar with improving the building envelope (air sealing and insulation) for buildings the vintage of yours as applying techniques used for modern construction on older buildings that were not designed to be bottle tight, may require additional measures to avoid inadvertent - and undesirable - outcomes.