Many attorneys will offer free consultations. Some will work for reduced rates, for clients of limited incomes. They can be cheaper than you may think. But handling an entire case pro bono is an entirely different matter. This is an issue that comes up a lot on this site, so let me take the opportunity to address it here:
Pro bono work is an important part of the legal tradition. I should know that if anyone does: I served on the Oregon State Bar's Pro Bono committee for the three years, and was its chairman in 2011. I have done quite a few pro bono cases, including one ongoing child custody case of great complexity. So I don't mean to discourage people from seeking out such help, and I certainly don't mean to discourage lawyers from providing it. That said:
The public often has highly unrealistic expectations for pro bono cases. People often think that if they're in trouble, they're automatically entitled to free services. It is almost never true. In general, pro bono work is done on cases that have a larger social impact, beyond the immediate effects on the client.
Even pro bono cases are likely to cost a fair amount of money. This is because litigation has considerable expenses that have nothing to do with paying your lawyer. There are costs for postage, copying enormous numbers of documents, hiring court reporters and investigators. There are filing fees and other court costs. There are often expert witnesses and other professionals (who generally do not have a pro bono tradition, and don't work for free). Oregon ethics rules prohibit attorneys from paying these costs unless they have a reasonable expectation that they'll be reimbursed. So even pro bono clients will need to advance some money up front.
And there's another reason that an attorney might want them to do so: In my experience, people don't value what they don't pay for. A lawyer can put a lot of work into a case, but if they're working all for free, the client may get fed up or frustrated when things don't go their way, and quit, or fail to appear for court, or stop following the lawyer's advice. This wastes all the lawyer's work and can make them look like an idiot before the Court. I am speaking from excruciating personal experience. Litigation is very slow and time-consuming and rarely works out perfectly, and you may be free to walk away at any time without an investment, but your lawyer is not. Our ethics rules require us to meet certain conditions before we withdraw. If you aren't committed to it, you can subject us to a ton of trouble.
It also bears mention that lawyers don't have as much money as you might think. The typical law school graduate today has over $100,000 in student loan debt. Lawyers have to pay Bar license fees, extremely expensive malpractice insurance premiums, and CLE (ongoing education) costs. Lawyers are not near the bottom - we are THE bottom, dead last, in terms of available jobs for professionals. The typical new law school graduate takes two years to find a job. Salaries are dropping for firms, and many self-employed solo practitioners (like myself) make less than minimum wage. So we get a bit annoyed, at being asked to work for free all the time.
I encourage you to shop around. You may be able to find a lawyer who can help you. But bear these issues in mind when you ask. You wouldn't want to do your own job for free, however badly people needed it done.
You may also check with your local court. Many courthouses have facilitators' offices that can give people assistance with the basics of filing documents. It's not legal advice (technically), but it's better than nothing.