Residential lot, two homes on it, looking to tear down and rebuild front house

[Matthew Komblevicz]

I have a property in south Texas that has two homes on it. I would like to tear down and rebuild the front house and rent it out I already confirmed with the city that the zoning is ok for the rebuild. Where do I begin? Architect, lender, builder? I will need to finance the build. I still owe $80k on the property, the city has it valued at $120k. The rear house has all of the value as it is a 1300 square ft home from the 70s; the front house is 580 sq ft built in 1952. I want to replace it with a small 2 bedroom 800 sq ft house. I have $30k to put into the project.