Authority-Boosting Backlink Strategy

I'm seeking an experienced SEO specialist to build high-quality backlinks for two of my brands over a minimum of four months.

The brands are:
1. Real Estate Investment Brand (IN)
2. USA Gun Concealment Brand

1. Real Estate Investment Brand (Indian Brand) -
- We will provide 3 blogs per month. Number of backlinks - 15-20
- PBN Backlinks - 10
- Real Estate Investment, Finance, CRE, and PropTech Blogs niche Indian websites

2. Gun Concealment Furniture (USA Brand) -
- We will provide 3 blogs per month. Number of backlinks - 5-6
- PBN Backlinks - 10
- Home Security, Interior Design, Firearm Safety & Concealed Storage niche USA websites

The backlinks will have to be posted on a mix of general and niche websites.