Should I go through MLS and find a real estate agent, send yellow letters, drive for dollars, talk to property management companies in the area, or talk with banks about foreclosures/preforclosures?

I found a great property from fannie mae and got it under contract for 38K.The selling realtor is frustrating at best to deal with.We are at the inspection part and I guess I am responsible for turning on utilities and making any repairs necessary to close as it is an “as is” property.Not a huge deal right now, and will know more, and expenses, when I go this weekend.Throughout all this, over the course of about 6 months I have looked at as many properties that I could.I have made offers like crazy, and have had a multitude of deals fall through.I say probably for the best, and has been a great learning experience.I have tried owner financing deals, half owner financing half conventional, commercial apartment buildings.Pretty much anything that seems like it would be a good deal I have gone after.I have wrote letters, contacted absentee owners, tracked down properties in distress, MLS listings and pretty much anything else besides sending out cold letters.In summery I have a property I live in that I cannot touch the equity in until the oil contamination is cleaned up, a lot of failed attempts to purchase more property, and a house under contract that I may, probably have to, put some money in in order to close.I have felt more uncomfortable doing real estate than anything else and I love it.It has been great!

Once you have a property under contract you now have potential buyers lined up, instead of getting a property and hoping to find a buyer.  2) GENERATING LEADS Yellow letter campaigns, bandit signs, billboards and yard signs can help you generate leads but I think your best bet is to advertise yourself as the "expert" in your neighborhood on buying houses.  

This forum is mainly for Real Estate discussions so I doubt many people have experience with direct mail for retail business.All I can say is that if you do it, keep the letters short and mail them consistently for at least 5 months.

On the first letter, assure both parties you will approve AND that this is required to protect them as tenants and you as the landlord.If they ignore you or refuse, the second letter is a Demand to Perform or Quit and you threaten to begin eviction on the 'once-upon-a-time guest'.

The rent amount on their " ledger " which shows all activity on the lease account, they have added extra charges that have nothing to do with my account, but are in connection with other renters in the community...they removed ERRORS that were placed on the account if the ERRORS were in the favor of the renter, ( like credits or referrals etc. ) but if the error charges are in the favor of the landlord, they claim they can't get those off the ledger, which results in an added amount owed to the rent...and they send collection letters threatening legal action.

Get a pay or quit letter, file it on the 5th and learn eviction procedures.  

Plus mailing off perhaps 1 letter a month to pay for a carpet cleaning or some small bill.

We love the cost effective side of postcards! 

Can someone point me in the direction of a template or an idea of what all should be covered in a 'letter of interest'?