If so, do I use my personal bank account to apply for a loan or do I need to put money in the business bank account? 

@Joe Gellenbeck Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a Class A property in Class D area, what quality of tenant will you get?

They have left so many people in terrible financial situations due to dishonesty and if you got involved in an investment with them like I did it will be one of your biggest regrets.

I am also involved in management at one of the largest STR property management firms in Cashiers.

A 1031 exchange does not apply to primary residences.If you plan to use the proceeds to buy land for a business, consider whether the land qualifies as an Opportunity Zone investment.

Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.

It's wise to verify the credentials of anyone involved in a significant financial transaction, especially if they are requesting proprietary financials.

If the tenant's concern is that their credit score would take a short-term hit from the credit report, then I think it is a legit concern (if their credit is slightly less than what it would be when they're trying to apply for new rentals, for example).

You can self finance or you can apply for a DSCR loan.

Living in one unit and renting out the others allows you to deduct 75% of expenses like mortgage interest, property taxes, insurance, and shared repairs as rental expenses, while the remaining 25% applies to personal use.