@Jorge Barboza Jr.
You could do this several different ways. And it depends on a lot of different variables as well. Is your partner a family member or other trusted long-time friend? Will the properties have mortgages? Will you be performing equal duties? Putting in equal amounts of money? Are you worried about the stability of your partner in terms of marriage or finances? What about liability concerns from tenants or creditors?
Having a formal entity allows you to have a written agreement laying out all the decisions both of you will make and the roles you will play with regard to the properties. It will describe which actions will need both of your approvals and which actions one partner can do on behalf of the entity. For instance, do you want to restrict your partner from being able to encumber the properties? Is there a dollar amount of expenditures you want to require unanimous approval? You could also draft a sort of tenants in common agreement if you wanted to avoid a formal entity, but that gives you no liability protection. If you are going to have debts attached to the property, you will want to make sure to watch out for any due on transfer clauses, or be ready to personally guarantee any loans taken out in the name of the entity. Will you also be using the entity as a property manager for other properties or want an entity name for tenants to be able to write rent checks out to?
If one partner puts in more money than the other, you could change ownership interests, you could treat it as a loan, you could reduce income/profits from the non-contributing partner until the contributing partner is paid, etc.
You will want to discuss with each other who will be doing what management functions and whether that is worth anything to you both. If only one person is doing all the work, do they deserve a management fee before profits are split? How will you calculate such a fee?
What if one partner wants out of the partnership? Can they transfer it or sell it? Will you require the other partner to buy him out? What about a first right of refusal? Can it be transferred to the partner's spouse (especially with California being a community property state)? What if one partner gets divorced or married? Can children have an ownership stake? What if one goes bankrupt?
What about in the event of disagreements? What decisions will require unanimous approval versus one partner can act? Will you require expenditures over a certain dollar amount to be approved by both partners?
Also just a caution that if one partner is putting in sweat equity/services for his interest, the accounting for it gets fairly complex.
If you need lawyer or accountant names in San Diego, let me know. Good luck!
*This post does not create an attorney-client or CPA-client relationship. The information in this post is not to be relied upon and readers are advised to seek professional advice.