@Harrison Payne I would highly recommend talking with some attorney's & CPA's to go over tax & asset protection that both own property & have done work within investment/rental real estate. You'll most likely find quite a few here, & in your local area that are doing business.
You do not necessarily need an LLC before your first deal, but the downside of that is that you are liable if something happens since you are going into business with rental property. By not having it set up properly you are increasing your risk as you may own the property in your own personal name which can be found in public records. Even though everything may go/run well, it's not "if" something will happen, but "when" something will happen. By having a business & investment property you are potentially bringing in a lot of inside liability (from the property, if something were to happen, tenants, contractors, etc. & outside liability (if you were to get in a car accident or something & it's your fault). Overall not trying to deter or scare you, but to help you before you get started with considering these very important things to protect you, your fam, & your $/assets.
Adding multiple properties to the same LLC is also another important thing to consider based on a lot of factors. Like how long are you holding the properties, how much equity do you have in those properties, do you want all of those in the same entity subject to the risk of the other properties, what your overall goals are, how much knowledge/experience you have, how the entity is structured, etc. Which would be another great conversation with a legal professional, other professionals & other sophisticated investors that consider tax and asset protection a big priority.
With the FHA loan you will not be able to close the home in the entities name, because it is a loan product specifically for first time homebuyers sponsored by the government. There are still ways you can protect yourself like trusts that may help if you are house hacking to decrease liability until you can change legal structures in future. Typically with FHA they want you to live in the property as a primary residence. With the FHA loan too, you have to consider their rules/regulations & what they will approve for a home (depending on how many repairs/shape of the property). FHA is a good option for living in, possibly house hacking depending on the home/situation & eventually converting the financing & legals structure over in future to better serve you.
Hard money loans is another option, but brings up a lot of other things to consider with your bottom line, how fast you would be able to refinance, if it's just for acquiring a place that's turn key or if you're about to do a rehab, etc.