High equity, absentee and vacancies are very common and everyone mails them.Maybe go to a local courthouse to pull recent divorce filings or eviction filings to target what may be tired landlords, though for all I know you can buy those lists as well.Let me add to this handsome feller's response.You should look into SEO leads.There is nothing better than a lead that is eagerly wanting to sell to YOU... so much so that they are the ones looking for you instead of you looking for them.People chase me, hunt me and harass me non-stop to please come by and make them an offer.Those leads are called inbound leads, and when you get these you will be shocked how different it all is compared to outbound leads. 

However, she is being harassed by a neighbor who discovered she is receiving a subsidy for housing. 

If you keep sending mail to someone that specifically told you to stop or remove them from your list then you are harassing them and soliciting.

In fact, if the communications are unsolicited, repeated, and commercial in nature (as you are running a business) you are at risk of being sued for TCPA violations, where the "sellers" you are harassing can bring private party action against you for between 500-1500 per incident.

Whom ever had the idea to harass and torment innocent sellers with their desperation and obsession for deal making no matter how many people they inconvenience needs to be mentally evaluated.If you want an actual (intelligent) analysis on the why's and hows.. something that pretty much no investors does (i.e.

We have one sub-tenant that has lived in our unit for ~7 years (because, rent control) and the atmosphere has gotten tense recently due to false claims of harassment he's submitted to the SF rental board (e.g. saying we tried to wrongfully evict him, or that my partner is unresponsive to his request).

The ownership here has pushed us out because they have failed to upkeep the grounds and have singled us out as tenants because of our complaints to the point where we do not feel safe in our own home and have been further harassed.

I'm definitely not suggesting you do anything illegal or harassing.

In my case, she was harassing a tenant of mine next door, and forced me into eviction procedures.

Then they did an episode where MacGyver's case was around a friend who was trying to drill an oil well and was being harassed by someone or another.