If and when you need a PE or licensed Architect to stamp plans, the contractor will have a relationship with one.

I want to leave a lock box on our shirt term rental in case there is a problem with the electronic lock.

Can you have that knowledge without the state or government or TRELA or NAR stamping you with their approval? 

@Marc, are you saying that if you look at the up to date eviction case records, there is that change of address form filed and with a dated (expectedly, with a date prior to when your letter was due) stamp from the court clerk on it?

For interior alterations, The City's website states that I can submit a RAAC Document (attached), Residential Automatic Approval Certificate, acknowledging that no plan review will be conducted since the drawings will bear my stamp and signature.

And have them email you the form rather than providing stamped envelopes.

Does anyone know a better deal for stamps?

I did walk away basically breaking even (probably out a few grand, but not losing my shirt) and with a much better respect and eye for a "great deal." 

A good way to classify A - B - C - D properties are by the shirts your tenants are wearing.A Properties = White collar professionals wanting nicer amenities to entertain friends.B Properties = Blue collar working class, bread and butter cash flow tenants that respect the property.C Properties = T-Shirts week-to-week paycheck residents, usually a mix of Section 8 and working classD Properties = NO SHIRTS gathered on the front steps drinking 40's out of a paper bag at high noon.

Not only will the city laugh you away for trying to submit plans that arent stamped by an architect and engineer, I can guarantee you that your budget is not nearly high enough for what it really is going to cost you to finish out that building.