Instead of resolving the issue, he’s threatening to place a lien on my property unless I pay him.I want to understand how does this lien work and this one example, I have such few examples with handyman, plumbers etc  they always keep threatening if you don't pay us we will put lien on your property. 

Brand new to BP other than listening to many podcasts.Self-employed and have been using most extra income to reinvest in my business to grow it.

What documentation do you ask for as proof they can pay?

whereas most people do not respect utilities that they do not have to pay for the utility bill could get expensive in my opinion.

She now has a stable job with the city and offered to pay double the security deposit if I would consider their application.

@Justin Reyes Let me ask you this...If you owned a marketable piece of real estate and no longer cared to own the property what would you rather do: (a) Sell the property, pay off your mortgage and move on to other opportunities; or(b) Sell the property without paying off the loan,  remain liable for the loan as the note signer and trust the buyer will continue to make payments on that loan, and if they don't your personal credit is damaged? 

They bring in right under 4k month all together in rents, claims to only pay property manager about 6k yearly, taxes are about 3,500/y.Comps I have for the same neighborhood range from 60k-145k per property and mobile.

It is likely that both you and your investment partner will need to pay taxes.

Tenant pays $2,000 of that, and you pay $2,000. 

If they do the escrow or just partial pay rent they you take them to court for non-payment.