In mutual consent cases court will accept common lawyer.,But it would be fair if you also pay him some money.
We should have faith in lawyer we engage.Unless thereareindicaitons to contrary.
In case there are no questions of fixing alimony etc the case is very simple and both of you can go and appear youself with respective afidaviots. U/s13b session judge will record statement of you both and dissolve marriage.
Now even lawyers cant take litigants and clients for granted as most people are educated and have access to court website and fora where they can get knowledge.
You can get a non advcoate to appear for you provided court prmits u/s 32 of advocates act . He should be a close friend or relative like faher,brother,husband ,son etc who has no interest in regular practcie and must have knowledge about case and facts. You cant ask soem outsider and non acquintance to appear for you.
If you cant hire a lawyer appear yourself or ask for legal aid from distrcit legal aid scoaiety in your court. You may get free or at concessional charges. Rest society will pay.