It is very effective if you keep it going.

He said if the 20k was used for a repair then it would effect my dti but if it was for a improvement it would not.

If you desire to change their rental terms let them know, and as rule of thumb as each state or county,s regs may be different, give them 90 days from the purchase of the properrty until your nee rental agreement comes into effect.  

By "my own," I mean I am my own Client.Is operating as an REA in the Bay Area an effective way to generate starting capital with which to invest?

Paying off your credit card debt will have the most obvious positive effect on your bottom line.

Here are some of the strategies I've seen marketers use to make their efforts less effective:1: Ask me to call as soon as possible, but don't include a phone number anywhere on the mailing.2: Don't include any sort of contact info -- company name, address, etc. -- so that I have no way to check to see whether this is a scam. 3: Send me offers to buy for cash properties I have never had any sort of interest in, ownership or otherwise. 

That is the question:) We find ours through direct mail (costly but still effective), craigslist (learn how to weed through the junk), and our website with FB ads.

If you have already told them to call the police and they refuse, I don't see how you can effectively do anything until something does happen - unfortunately if there is something amiss - and without either neighbor corroborating one another story.Could it be that those neighbors and your tenant have somehow fallen on bad terms with one another and the neighbors are now complaining in hopes of your not renewing their lease?

If so, how will you be able to effectively manage and protect the property?  

I told him that we would come today to remove the effected ceiling.