The best path to take is to contact local listing agents who specialize in listing bank owned homes. some banks have the agents handle all teh preservation tasks. other banks use national companies which are harder if not im[ossible to get work from. You should visit the agents. have atri fold list of what you can do, include a copy of your insurance or licenses and offer free estimates. offer good pricing, fast service and do a great job.
Please see my blog if you would like more tips and advice on cleaning or fixing bank owned homes.