Is there anything I can do as a partner in the deal to help in this situation while still having the loan in his name? 

I'd really appreciate hearing from you if you’ve been in a similar situation or have any insights.

Here are a few strategies to consider for funding a down payment:Partnering: Like Gregory mentioned, finding a partner who can contribute to the down payment in exchange for equity or a profit share is a solid option.HELOC or Cash-Out Refi: If you have equity in your home or another property, a home equity line of credit (HELOC) or cash-out refinance can provide the funds you need.Private Money: Reach out to friends, family, or private investors who may be interested in lending you the down payment with a promissory note.Seller Second: In some cases, the seller might agree to finance a portion of the down payment as a second mortgage.Live Frugally and Save: It takes time, but reducing expenses and setting aside funds from your income is a tried-and-true method.The right approach depends on your situation and deal structure, but a mix of creativity and resourcefulness can go a long way.

If you know of anyone please refer it to me.My situation is that even though I have my STR certificate the OSE officers keep knocking on my door, the 1st time I was home and I talked to them, and because I had guests they didn't insist to get in.

The Only other deductions that I have right now are $154 for unpaid water bill, and $45 for the minor repairs mentioned (doorbell, blinds, shower).Questions for the group:Does $540 seem excessive for a cleaning charge, given the situation?

There can always be a situation specific to you where your intent was to hold but something cause you to change that. 

Normally, we would say no and wait until the end of the lease but due to the situation and hardships we would inspect for pets and pet damages.

For example, I met an agent who is managing an Airbnb with a similar situation.

So far this is looking like a great option for my situation but I've never done one before.

This puts both you and them in an uncomfortable situation, as you are inferring that they didn’t already price it fairly.Don’t make a list of the flaws of the property and use that to try to talk the seller down.