Call them and tell them that you will be notifying whatever state agency oversees these types of businesses and filing a complaint with them, in addition will also be filing a BBB complaint.

Call Becky Koch @ US Title Agency....the best.  

A new collection agency may buy it and it and a lawsuit against you will pop up at the least opportune time.Paying it if you are able is the right thing to do as @Gregory Hiban mentions.  

A few suggestions for Hard Money and groups.HARD MONEY:http://dfwinvestorlending.com/  This agency has appraisers on staff as well.https://www.investmarkmortgage.com/http://www.longhorninvestments.com/GROUPS:http://dfwinvestors.com/http://www.meetup.com/Real-Estate-Investor-Social-...http://www.meetup.com/Real-Estate-Investing-Social...http://ntarei.com/You may be able to find a couple people is these groups to follow on a flip.  

NoThis post is old and the OP probably moved on, but for the record, you may have the same zoning code than a building few blocks away, but the property may be subject to additional zonings, city ordinances, and agencies constraints that differ from the other one, and the code changes over time.You do not need schematic designs but a title analysis for potential easements, code and zoning analysis and a detailled financial feasibility study.Let me give you a couple of simple examples(based on my own experience) illustrating why this assumption is dangerous.In Los Angeles like in many other cities, you have houses and buildings built as early as 1910s -1920s Let's say you plan to demo a crumbling apartment building and plan to build a new one; let's pretend the zoning allows it, the setbacks are good, the floor area ratio is ok, you do not have insanely expensive lead paint or asbestos abatement and disposal to do; everything looks good and you go ahead with the demolition.

I 've found going to your client base by seeking out their agency and speaking with directors.Offer free question and answer sessions .

I always give them the name and number of other agencies here that offer rentals, as no matter what, I still want them to find what they are looking for, even if we don't offer it...but like I said, it sure stings!

As for purchase agreement, I would use one that strongly mirrors the language that your local realtors would use, obviously eliminating the realtor/agency language.

When you disclose your agent status in writing as part of the contract that takes away any claim of "he took advantage of me by hiding his agency". 

Does this agency offer you the help and support you actually need?